bio bay kayak tour vieques

8 Best Bioluminescent Kayak Tours In Mosquito Bay, Vieques (2024)

• Mosquito Bay
• Bioluminescence Tours

Vieques is an island in Puerto Rico that is home to a bio bay.

This bio bay is called “ Mosquito Bay “, and you can experience it by taking a night kayak tour.

I lived in Vieques for 4 years, and I’ve seen the glowing waters of Mosquito Bay many times.

In this article, I will cover the 8 best bioluminescence tours in Mosquito Bay:

1. Glass bottom kayak tour

Exploring Mosquito Bay in Vieques on a glass-bottom kayak tour is an unforgettable experience.

This tour combines the excitement of kayaking with the experience of viewing the bioluminescent organisms in the water below while you paddle through the bioluminescent waters.

With a glass bottom kayak, you can see the bioluminescence more clearly without disturbing the organisms. 

          View this post on Instagram                       A post shared by Dayna Davidson Collins (@daynalovesart)

Get ready to be surprised when you are surrounded by the magical glow of the bioluminescent water. 

This tour is perfect for anyone who wants to experience the beauty of Mosquito Bay’s bio bay in a unique and eco-friendly way. 

Experienced guides will provide information about the organisms that create the bioluminescence and will ensure your safety throughout the tour, and give you a backstory about the constellations above. 

Check out the video of glass bottom kayaking below:

A glass-bottom kayak tour of Mosquito Bay is a must-do activity for nature lovers and adventure seekers visiting Vieques, you can book with Taino Aqua Adventures .

You will want to understand the logistics of reaching Vieques from the main island of Puerto Rico, so check out our article How To Get To Vieques From San Juan for all the details.

2. Group kayaking tour

It’s a once in a lifetime experience to paddle through the water with a group of other people and see all the glowing organisms lighting up the bay. 

And don’t worry, it will be dark but you’re in good hands with a guide who knows the ins and outs of the area. 

You’ll get the chance to learn about the science behind bioluminescence and how important it is to the ecosystem.

The mangroves that surround the bay are one of the reasons why this is the brightest bio bay in the world; the roots of the mangroves protect the organisms, creating a nursery for them that keeps them safe from predators.

Learn more about Mosquito Bay in the video below:

Taking a nighttime kayak tour is one of the most amazing things you can do on Vieques, and you can book with Black Beard Sports . 

If you are looking for more ideas, check out our article covering the 30 Best Things To Do On Vieques .

3. Borikua Tours

If you prefer not to kayak through the bio bay at night, this tour is ideal for you. 

You’ll be taken on an electric boat that will cruise around the brightest spots of the bay, giving you a comfortable view of the bioluminescence.

You can leave your phone and other important items worry-free as this tour ensures they will stay dry.

Please be aware that this tour requires a minimum of four people, including your group, to be booked for it to take place.

Book this tour by contacting Borikua Tours and if you want to experience Vieques and other surrounding islands by catamaran, check out our guide to the 10 Best Catamaran Tours In Puerto Rico .

4. Island Adventures Bio Bay Tour

Island Adventures is a small eco-tour company that offers an educational experience to its guests about the bio bay.

          View this post on Instagram                       A post shared by Vieques – Ready When You Are (@discovervieques)

Despite being a common misunderstanding, the primary factor that affects the visibility of bioluminescence is not the moon phase. Instead, it is the moon rise and set times that play the most important role in determining the visibility of the glow. 

While many people believe that the phase of the moon is the crucial factor, this is not usually the case.

Understanding this distinction can be crucial for those planning to witness bioluminescence, as it enables them to time their visit more accurately and increase their chances of seeing the stunning natural phenomenon in all its glory.

Read all about it in our article discussing When Is The Best Time To See The Bio Bay ?

You can learn more about booking with Island Adventures Bio Bay Tour on their Facebook page.

5. Wai Vie Bio Bay Tours

Vieques is well known for having beautiful, secluded beaches.

If you asked me, I would tell you that beach hopping, snorkeling, and bio bay are the top things to do on the island.

Wai Vie Bio Bay Tours offers different tour options where you can visit beaches during the day and explore the bio bay at night. 

Check out options on Wai Vie or dive in to our guide to the 17 Best Beaches On Vieques , including the famous Black Sand Beach.

6. Melaya’s Tours

Melaya’s Tours recommends bringing a bathing suit, towel and water shoes and sandals that can get wet.

          View this post on Instagram                       A post shared by AVIAN COFFEE (@aviancoffee)

These kayak tours are suitable for individuals under 250 lbs.

This tour meets on the boardwalk in Esperanza, providing an easy to access option if you are staying on the south side of the island.

Check out Malayas Tours , and to make sure you get the most out of your stay on Vieques, read our guide on Where To Stay In Vieques – 12 Best Places And Areas .

7. Fun Brothers

Fun Brothers have been on Vieques since the early 2000’s.

In addition to their bio bay tours, they also offer scooter rentals if you are looking to take an excursion around the island.

Vieques is well known for having tons of free roaming horses, which could make for a great adventure as well.

Book a bio bay tour with Fun Brothers or learn more about the different tour options outside of the bay (like horseback riding!)  in our article featuring the 13 Best Tours In Vieques .

8. Bieque Eco Trips

You can rest assured knowing that all tour operators from Bieque Eco Trips have gone through safety training procedures before they take you into the water at night on your kayak to witness the beauty of the bio bay.

Before your trip to the bay, your guide will explain to you exactly what you need to do to remain safe while your tour is underway.

Vieques is known for being a very safe place to visit and so is the bio bay.

Book your tour with Bieke Eco Trips or for more detailed information, check out our article Is Vieques Safe For Tourists ?

FAQ section:

Do you need a tour for mosquito bay.

Yes. The government regulates the tour companies that operate in the bay to help conserve this natural phenomenon. There is no access to the bay without a guided tour.

How do you get to Mosquito Bay?

From San Juan, you will need to drive about one and a half hours to Ceiba, where you can take a ferry to Vieques. Once you arrive on Vieques, you will take a public bus or taxi to the town of Esperanza, which is where most of the bio bay tour companies meet with their guests for the tour.

Final thoughts

Mosquito Bay is a unique experience, but it’s very hard to get to.

I recommend that you go to Laguna Grande Bio Bay in Fajardo instead, since it’s located only an hour from San Juan.

If you want to learn more about Puerto Rico’s Bio Bays, then check out my article Bioluminescent Bays Puerto Rico – All You Need To Know .

Additionally, if you want to learn when the best time is to visit a bio bay in Puerto Rico, then check out my other article When Is The Best Time To See Bioluminescence In Puerto Rico .

Brittany Ashford

Writer at PuertoRico.com. After living in Puerto Rico for seven years, I opened a guesthouse in Rincón and welcomed over 400 guests to the island from around the world. When I’m not writing about travel or spending time with my dog, I’m working towards becoming a pilot with dreams of flying around the islands.

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Bio Bay Tours on Vieques Island on a Full Transparent Kayak

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VIEQUES KAYAKS BIO BAY

787-905-6782

BIO BAY TRIPS

Vieques Kayaks offers guided bio bay trips in clear bottom kayaks to Mosquito Bay in Vieques, Puerto Rico. The bio bay in Vieques is known as the brightest bioluminescent bay in the world!

In order to participate in our tour, an overnight stay on Vieques is required . Vieques is a separate island off of the main island of Puerto Rico. You will need to take a plane or ferry (ferry schedule can be found at www.puertoricoferry.com) from the main island of Puerto Rico to reach Vieques, and you will need to arrange separate ground transportation because you will not be able to bring a rental car on the ferry with you. If you contact us, we are happy to provide a list of rental agencies or a list of taxi and publico drivers who may be able to assist you with ground transportation. Because we only offer tours at night so that our clients can experience the glow of the bay, even if you take our earliest tour, you will not be back to our meeting point (on the south side of the island) with enough time to get on a ferry or a plane back to the main island on the same day .

Our Bio Bay trips are at 7:00 pm and 9:00 pm most days of the year, except the three days each month surrounding the full moon. The trip is two hours roundtrip from the meeting point, so you’ll be with us for two hours, and on the bay for about an hour and a half, weather and conditions permitting. We meet for the trips at 277 Calle Flamboyan in Esperanza, in the lot directly across from Rainbow Realty. Esperanza is located on the south side of the island of Vieques. All trips are in clear bottom kayaks. Each kayak seats two people. We provide life jackets and paddles for each guest.

Click here to book your trip today, or call 787-905-6782. Please note that if you are trying to book a trip within 24 hours of departure, you may get an error trying to book online. Please give us a call, because we may still be able to accommodate your trip!

VIEQUES BIOBAY TOURS

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Discover the beauty and science of bioluminescence, along with the life of the Pyrodinium Bahamense, the single-celled organism responsible for this amazing glow. Hop in your kayak and let’s go!

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Welcome To Mosquito Bio Bay Tours

Immerse yourself in the captivating beauty of Vieques Bio Bay with our guided tours. Glide through the bioluminescent waters of Mosquito Bay by kayak or boat and witness the mesmerizing glow created by millions of microscopic organisms. This enchanting spectacle transforms the bay into a magical display of sparkling blue light. Ensure a safe and enjoyable experience by arriving on time for the safety meeting before your tour. Join us for an unforgettable adventure and connect with the wonders of nature in Vieques Bio Bay.

Discover Vieques Bio Bay Tours

At Discover Vieques Mosquito Bio Bay Tours, we are passionate about showcasing the natural wonders of Vieques, Puerto Rico. Nestled in the heart of the Caribbean, Vieques is home to one of the most spectacular bio-luminescent bays in the world – Mosquito Bay.

Our mission is to provide an unforgettable experience that allows visitors to immerse themselves in the mesmerizing beauty of the bio-luminescent phenomenon. With our expert guides and top-quality equipment, we ensure a safe and enlightening journey through the glowing waters of Mosquito Bay.

As stewards of the environment, we are committed to promoting sustainable tourism practices and preserving the delicate ecosystem of the bio bay. Through education and awareness, we strive to foster a deeper appreciation for the natural wonders of Vieques.

Whether you're a first-time visitor or a seasoned traveler, our team is dedicated to providing exceptional service and creating memories that last a lifetime. Join us on a magical adventure and discover the enchanting allure of Vieques' bio bay with Mosquiyo Bio Bay Tours.

The Vieques Bio Bay tour offers a unique and captivating experience as you venture into the bioluminescent waters of Mosquito Bay. Witness the mesmerizing glow created by millions of microscopic organisms called dinoflagellates, which emit light when disturbed. As you kayak or boat through the bay, every movement creates a trail of sparkling blue light, turning the water into a magical spectacle.

Treasure hunts, this natural phenomenon is a must-see, providing an unforgettable adventure and a deeper connection to the wonders of nature. join a guided tour to explore the vieques bio bay and immerse yourself in this enchanting experience..

Experience the mesmerizing beauty of Vieques Bio Bay on our guided tours. Glide through the bio-luminescent waters and witness the magical glow created by microscopic organisms. Arrive on time for the safety meeting and join us for an unforgettable adventure in nature.

What is a bio bay tour?

A bio bay tour takes visitors on a guided kayaking adventure through bio-luminescent waters, where microorganisms emit a natural glow, creating a stunning luminescent effect in the water.

Where is the Vieques bio bay located?

The Vieques bio bay, known as Mosquito Bay, is located on the southern coast of Vieques Island, Puerto Rico. It is one of the brightest bioluminescent bays in the world.

When is the best time to take a bio bay tour?

The best time to experience the full bioluminescent effect is during moonless nights, typically around the new moon phase. However, tours are available throughout the month, weather permitting.

Are bio bay tours suitable for all ages and experience levels?Your Title Here

Yes, bio bay tours are generally suitable for all ages and experience levels. Most tour operators provide beginner-friendly kayaks and experienced guides to ensure a safe and enjoyable experience for everyone.

How long does a bio bay tour last?Your Title Here

Bio bay tours usually last around 2 to 3 hours, including kayaking time and a guided exploration of the bio bay. Tour durations may vary depending on the operator and specific tour package.

Is swimming allowed in the bio bay?

Swimming is typically not allowed in the bio bay to protect the fragile ecosystem and ensure visitor safety.

Get In Touch

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The Pirate Bio Bay Tours 

787-436-6082

Vieques Puerto Rico

Locally owned and operated tour guide company.

We know Vieques better!

Allow us to introduce you to the magical sight of our bioluminescent bay in our clear kayaks, and with our knowledgable and fun tour guides 

A once in a lifetime  experience

Vieques has the brightest bio bay in the world! Our clear kayaks make your time in the bay just magical. 

We limit our tours, which makes it more open for conversation and enjoyment.

Bio Bay Kayak Tour

Experience our nighttime  Bioluminescent Bay tour in our clear kayaks, with our educational and super fun guides.

Surround yourself with the magic!

to book your chosen date and time for the Bio Bay Tour, click the link below

Snorkel tour.

Guided Snorkel Tours to the best spots in  Vieques . Imagine  the possibility of marking that

"swim with  turtles" off of your bucket list! 

for more information on our Snorkel Tours, click the link below, or contact us at 787-671-3862

[email protected]

787 448 5931

Vieques, Puerto Rico

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Kayak Tour Night in Vieques Puerto Rico Bioluminescent Bay

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Vieques Kayaks Bio Bay - All You Need to Know BEFORE You Go (2024)

An unforgettable experience. Come and see the wonders of the Island of Vieques. 

Explore the greatness of Vieques Island with us.

We offer snorkeling tours and the unforgettable experience of visiting the brightest bioluminescent bay in the world.

Cancellation Policy - Once the reservation is completed, you must provide us 24 hour notice prior to your tour to cancel and receive a full refund.  If a cancellation is made within 24 hours of the tour a full charge for the activity will be made.  In the event that we cancel the activity, you will receive a full refund. Same day reservations can't be cancelled, if a guest does not show up for their tour we will charge the total amount of the reservation. We don't cancel activities for rain.    Reschedules with 24 hour or less notice, has an extra charge of $30 per person. 

[email protected]

(787) 644-7112

Hours of Operation Monday — Sunday, 9:00 a.m. — 11:00 p.m.

Biobay Tour

“Bienvenidos” to a unique and rare Bioluminescent Experience, an adventure not to be missed while on Vieques Island! Join this fully guided night trip into one of the most amazing natural phenomena of the world with our tandem  CLEAR BOTTOM KAYAK ! This pristine ecosystem teems with astonishing marine life, inhabiting a secluded bay protected by mangrove forests. You will meet our glowing friends, the Pyrodinium Bahamense, a microscopic plankton capable of producing natural light at the touch of your hand!

Once-in-a-Lifetime Bioluminescent Experience!

At the prescribed time, we meet  on the dirt parking lot close to the fisherman dock in Esperanza on road 996  https://maps.app.goo.gl/Amf77vT9JNxa91gAA .  Your Eco interpretive guides call the group of kayakers together for a briefing session covering basic kayak handling, rules of the road and the importance of keeping to a minimum any disturbance of the pristine environment of the bioluminescent bay.

Explore these amazing organisms up close in our smaller group excursions led by knowledgeable interpretive guides. Learn how this fragile and unique ecosystem maintains a perfect balance of life, and what we all can do to protect and preserve such a special place on planet earth!

Our 2-hour and 15 minutes approximately guided bio bay  CLEAR BOTTOM KAYAK  excursion (including check in-time) includes interesting interpretations about the reserve fragile ecological system, star constellations, and a fascinating encounter with millions of bioluminescent organisms. As you glide along in your kayak, experiencing this unusual nighttime phenomenon and seeing how fish light up their path like shooting stars in the water, you might get the feeling that the dark Caribbean sky is getting jealous of the glowing water below as it tries to catch up with shooting stars and impressive constellations!

JAK Water Sports, beyond doubt, can provide you with the best interpretative kayak trip in the Puerto Mosquito bioluminescent bay. Go -“ECO”- explore, conserve, observe with JAK Water Sports and learn with our professional staff about the unique ecosystems, splendid constellations and glowing waters! The adventure to Puerto Mosquito can only be described as magical, creating memories that will last a lifetime!

Let your Adventure Begin!

Reservations

For reservation, please Call us at (787) 644-7112 to check on availability and trip times, we love to talk directly with the clients.  We don’t do booking thru TripAdvisor, VIATOR or Third- Party Site.

Please be prepared with the following information:

• Number of people in your group, email address 
•   Please keep in mind that you need to stay overnight in Vieques if you plan to see our Bioluminescent Bay. 
• We accept Visa, MasterCard or Discover Note: Valid credit card info required to make reservations and to guarantee the reservation and spaces.    SPACES WILL NOT BE RESERVE WITHOUT CREDIT CARD. 
• We will gladly send an email confirmation of your reservation with directions. If you plan to pay with a credit card, for our mutual security, the physical card must be presented at time of check-in.  See below for our policy and cancellations. 

Weather Conditions and Your Trip

The tour is not cancelled on rainy days; it is still safe and the water is still glowing under the rain. JAK Water Sports and Rental reserves the right to cancel or reroute any tour due to acts of nature or unforeseen circumstances that would hinder our ability to safely run a trip. If we are unable to provide you with another trip, any money paid will be fully refunded. We make all the determinations about weather cancellations however, so please don’t make the mistake of deciding you’re not going to come because you think the weather might not be acceptable, as you will be charged if the trip goes out. If you ever have a question about weather conditions, please call us prior to 10 AM on your day of trip to be sure.

Things to Know

• Check-in and meeting place: We meet on the dirt parking lot close to the fisherman dock in Esperanza on road 996   https://maps.app.goo.gl/SCtSEazKoju3xN6w9 .  
• Insect repellent, optional: Please select a Deet-free kind to minimize bay contamination.
• Suggested clothing: long sleeve top (the bay gets chilly on certain month of the year), shorts, flip-flops, Crocs, clothes that can get wet.
• Please leave large bags at your lodgings as there is not storage on the kayaks or the meeting place. 
• Please keep in mind that you need to stay overnight in  Vieques if  you plan to see our Biobay.  Vieques Island is a separate island from the main island of Puerto Rico.  You must take a ferry  www.puertoricoferry.com   or a plane to get here.  
• Our kayaks have a combined weight limit of 385 lbs.  If you need special accommodations, please inform us at the time of your booking so that we can provide them.
• First timer’s kayakers are welcome. Most of our clients are first time kayakers, so we provide you with a briefing about how to kayak prior the excursion  
•   In compliance with DRNA regulations, there are no tours of the biobay in Vieques the day before the full moon, the day of the full moon, and the day after the full moon each month.  

Cancellation Policy

• Credit card number is to  be held  and to guarantee  the reservation  but is not charged in advance of the tour  and are only run if participants don’t comply with our cancellation policy:
• Reservations canceled after 10:00 AM, day of trip.
• Failure to show or missed departure time.
• Spaces reserved but not used by the party at the last minute are considered a last-minute cancellation and will be charged the regular rate and the full amount.
• To avoid cancellation fees, you must call before 10:00 AM of the day of your scheduled trip.
• For groups of 7 or more will  have 48 hrs. before the date of your tour to cancel to avoid cancelation fee.   If you don’t comply with the cancelation policy the credit card will be charged full price of the tour and will NOT receive a refund due to our limited spaces.   We charge all large groups 48 hrs. before the day of your tour.
• Reservations booked the day of the tour are non-refundable.
• It is the client’s responsibility to arrive to Vieques island on time for their reserved activities or Biobay tours. Travel delays to Vieques do not constitute a reason for refunds. 

Please keep in mind that this tour takes place in a natural environment and that the bioluminescent phenomenon, although rare, can be seen year-round. All natural ecosystems are dynamic and their conditions can vary. Puerto Mosquito is known as a bright and stable bioluminescent bay, but the intensity of the glow may fluctuate due natural changes beyond our control. The intensity of brightness is unpredictable and can vary. Most important – the glow is always there!  ENJOY THE SHOW!  

Safety and Physical Condition Restrictions

For safety and health reasons, those under the following conditions are not allowed to participate in kayaking excursions with JAK Water Sports.

• children under 4 years of age
• pregnant women 6 months or more
• those who have epilepsy, back problems, heart conditions, dizziness, recent surgery
• any other condition that may put life (yours, our guides, or other guests) at risk

Please help us make this a pleasant experience for all!

Water sports, especially those involving motorboats, offer a thrilling combination of speed and adrenaline.

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Wai-Vie Adventure Tours & Rental

Vieques island charters & tours.

Kayak | Snorkel | SUP | Fishing | Combo Excursions

Play among the waves

Our adventures and excursions get you up close to the best areas of  Vieques Island! Our guests love our water adventures because we go above and beyond to give you intimate experiences of our beautiful island.

Bio-Bay Kayak Night Tour

When you visit Puerto Rico, a must-do experience is a trip to Mosquito Bay on the beautiful island of Vieques. Our bio-bay night tour is a one-of-a-kind nighttime kayaking experience!

• Calendar Every day
• Users Ages 6+
• Hour Glass 1.5 - 2 hours
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Full-Day Snorkel by Boat – Culebra

Explore the colors of Culebra, a small island off Puerto Rico that boasts amazingly clear waters, isolated beaches and perfect locations for snorkeling!

• Hour Glass 7 hours

Half-Day Fishing Charter

Reel ’em in! This is one of our most popular fishing charters. Fish the spectacular waters of the Caribbean and catch bonito, dorado, yellowtail and other marine species.

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An Adventure Like No Other...

Wai-Vie is a distinctly Viequense company, born out of a need for reinvention. Bringing skills from our previous experience in the fishing and tourism industry, our vision is to guide visitors and residents alike to come to know Vieques’s beautiful natural resources.

Our name, Wai-Vie, streams from our seagoing roots. It was in playing among the waves, or “waiviando” in Viequense, that the dream for our venture was born.

We give our guests in-depth visits to our island!

The best tour guides on the entire island. They give you an adventure like no other. I love how they focus on small groups giving you a more intimate experience. they go above and beyond what you expect. we signed up for a snorkeling tour and got to experience so many extra things. when visiting Vieques choose Wai-Vie!

The tour from start until we finished was excellent, complete information was provided in the most professional and unique way. The Staff made us feel secure and safe in every way possible, all the while helping us to understand the wonders of the Bay. They shared with us the very best that Vieques has to offer!!! It was amazing and I was so humble that I got to live this once in a lifetime experience.

Raimundo and his staff are very professionals and safety is their number one priority. You also get snacks and water with your tour....very nice touch. Very knowledgeable of the history of Vieques and everything that's got to do with coral reef among other very interesting stories. I promise you wont' regret it!

Rega gave us an outstanding tour of the bio bay. He provided transportation from our home in Vieques and helped us as novice kayakers. He is clearly very passionate about the island and had a lot of wonderful information to share. Highly recommended!

We had a wonderful behind the scenes tour of the island with Rega. We are repeat visitors to Vieques and he gave us the tour we’d been hoping for - not the typical tour but one that we couldn’t do ourselves! I highly recommend!!

Rega took us on a Bio Bay tour at night by kayak that was one of the most amazingly otherworldly experiences we've ever had. He told us all about the elements creating the luminescent phenomenon and showed us details of the delicate eco-system that contribute to the glow. His passion, knowledge & reverence for Vieques & the bio bay was a refreshing change to the typical pandering tour guide one would expect.

Bioluminescent Bay Kayak Trip from Vieques

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Vieques Kayaks Bio Bay excursions are guided in clear and semi clear bottom kayaks through the glowing waters of Mosquito Bay, located on the island of Vieques, Puerto Rico. Mosquito Bay is the brightest Bioluminescent Bay in the world! To do our tour aware that Vieques is an island apart from Puerto Rico so you will need to take a ferry from Ceiba or a plane from San Juan or Ceiba and stay overnight at the island. Our excursions depart nightly at 7pm and 9pm. We do not operate during full moon. Book now to paddle the GLOW with Vieques Kayaks Bio Bay excursions, where the Bio Bay is the star!

Ticket Options

1 Option Available

Bioluminescent Bay Kayak Trip from Vieques: $60

Ticket Information

• Mobile or paper ticket accepted
• One per booking

What's Included

• Round trip transportation from the meeting point to the Bio Bay entrance
• Paddle and Life Jacket

Cancellation Policy

• For a full refund, cancel at least 24 hours before the scheduled departure time.

Additional Info

• Public transportation options are available nearby
• Suitable for all physical fitness levels

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We have all the licenses to operate in the Bay and our guides have their licences up to date.

Vieqes island bioluminescent bay is the best bay around Puerto Rico – and one of the last that remain on the planet! Experience this rare phenomenon of nature as you glide through the tranquil surrounded by mangroves and teeming with sea life above and below the still water.

• Tour Duration : 1.30 hours – Sunset Session 7pm to 8:30pm / Evening Session 9:00pm to 10:30pm
• Days of Operation : Every day
• Sunset Session: 7:00 pm – 8.30 pm
• Evening Session : 9:00 pm – 10:30pm (Only if 7pm is full , we open the 9 pm session)
• Tour Distance : 1 mile each way
• Ages : All family members welcome / physically fit to handle a kayak with paddles (children 4 yrs+)
• Location : Vieques Sun Bay, Vieques, Puerto Rico
• Cost per person* : $50 p/p  (If u are a large group >6 contact us) Children under 4 are free. 
• Max Weight : 250 lb 
• Meeting Point : Esperanza (But no matter where you stay in Vieques, You need a Car or a Taxy)

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I sat silently in my kayak, one hand swirling the water outside the boat. With each gentle swish, a miniature constellation of underwater “stars” twinkled around my fingers. In the kayak beside me, a woman spun her paddle in the water and gasped at the tiny explosion of light. Ahead of me, the comet-like streak of green in the water indicated a fish swimming near the surface. That’s the magic of Bio Bay tours.

I’d come to Isla de Vieques, off Puerto Rico’s main island on a kayaktrip in its world-famous bioluminescent bay. The experience was everything I’d hoped for — a stroke of luck, given how poorly I’d arranged my trip. Getting the most out of a bio bay tour requires a lot of advance planning, and, in the case of Vieques, more cash than you might expect.

Here’s what I wish I knew before making the trip.

13 Things I Wish Somebody Told Me Before Taking the Fajardo Bioluminescent Bay Tour in Puerto Rico

1. bioluminescence is surprisingly common.

Much like fireflies do on land, single-celled, water surface–dwelling organisms called dinoflagellates, a type of plankton, can emit light underwater. They aren’t the only marine organisms that glow. Some 1,500 species of fish are known to luminesce, as well as certain types of squid, jellyfish, worms, and crustaceans. Many use bioluminescence as lures for food or mates, or to confuse predators.

Although dinoflagellates are microscopic, they often form large colonies. The human eye doesn’t detect the bioluminescence when a water body is still. But when disturbed, such as by wind that ripples the surface or the slicing of a boat hull through the water, our eyes translate the light wavelengths into glow-in-the-dark sparkles and zigzags of green or blue-green.

2. Puerto Rico Has Three Bioluminescent Bays

The planet currently has five ecosystems where dinoflagellate concentrations are high enough to consistently cause this bioluminescent phenomenon. Puerto Rico claims three of them where Bio Bay tours are organized.

In Fajardo, along the east coast of the main island , Laguna Grande is the most trafficked of the trio. It’s not as bright as the others, but at only an hour by car from San Juan , it’s the easiest to get to. This also makes it the most touristy of the bunch.

A few of the better-known Laguna Grande tour operators include:

• Eco Adventures
• Kayaking Puerto Rico
• Yokahú Kayak Trips
• Puerto Rico Bio Bay Tours

In Lajas, on the opposite corner of the main island, La Parguera is the least visited of the three bays. At about 2.5 hours from San Juan, it’s a much longer drive than Laguna Grande, but a worthwhile stop if you’re visiting the western side of Puerto Rico.

Some Bio Bay tours allow swimming in La Parguera. Because chemicals in bug repellents, sunscreens, and body lotions can kill the phytoplankton, you’ll need to shower before joining a tour that includes swimming or diving through the bio bay.

Try one of these La Parguera tour operators:

• Parguera Eco Tours
• Bio Bay Tours
• Kayaking Parguera
• Alelí Tours

The granddaddy of all bioluminescent bays, and the brightest in the world, is Mosquito Bay in Vieques. Although Hurricane Maria devastated the island in 2017, Mosquito Bay’s dinoflagellate population has, miraculously, doubled since then. On a dark night, you’re almost guaranteed to see something spectacular.   

Tour operators on Vieques include:

• Abe’s Snorkeling
• Black Beard Sports
• Vieques Kayaks Bio Bay
• Jak Water Sports

3. Booking A Tour Can Lead To Unexpected Expenses

You can rent a car and drive to Laguna Grande or La Parguera. Mosquito Bay isn’t connected to the main island, so you’ll need to take a ferry (about $40 per person) or small plane (about $120 per person) from Ceiba, or fly directly from San Juan (about $130 per person), to get there. Depending on the time of year, ferry and flight service may or may not be available after 7 p.m. Residents of Laguna Grande are given preference on the ferry, which means you could get bumped from an especially full voyage.

In addition, many bio bay kayaking tour operators require an address where you’ll be staying on the island in order to complete booking. Since cars aren’t allowed on the ferry to Vieques, you must rent a car or line up a taxi ride once on the island.

The short story: It’s best to plan an overnight stay on the island.

Between our flights, taxi, accommodations in the least expensive Airbnb we could find, and the tour itself, my husband and I spent about $450 on this portion of our kayak trip. Allow for more costs if you plan a day trip to El Yunque National Forest – the only tropical rainforest in the U.S. National Forest System.

We chose Abe’s Snorkeling for our excursion. The sea life kayaking experience was very good overall, although the tour operator, like an airline, oversold their 7 p.m. tour. About a dozen of us were bumped, with no notice, to the 9 p.m. slot. For our trouble, our guide offered each pairing of people a refund on one ticket.

4. Almost Anyone Can Do It

Bio bay kayaking is appropriate for most levels of ability. The water is usually calm, and paddling is done at a laid-back pace, mostly in two-person boats. Because you’re kayaking in the dark, it’s important to follow your tour guide and his instructions and stick close to your tour group. This could be tricky for travelers with vision or hearing impairments. If you’ve got grandkids in tow, ask about age restrictions.

5. Know Your Moon Cycles, And Book In Advance

You might be able to book a tour on the fly, but I wouldn’t risk it. Most fill up several months in advance, especially during the high season.

Although Puerto Rico’s bays luminesce year round, you’ll have the best experience on a dark night. Kayaking during a new moon is preferable because the glow percentage is usually higher. Using a moon phases calendar will help you chart out the best time to go.

Most operators don’t even run tours 3 days before or after a full moon. We didn’t realize this when we booked our Puerto Rican vacation. Fortunately, the final night was just beyond the full-moon window.  

The day before or the morning of your excursion, call your tour operator to check on the bay’s brightness; it should be a minimum of 30 percent. In addition to the moon, tides and water temperature affect how much color you see.

6. Ask About Clear-Bottomed Boats

Some tour companies offer clear-bottomed boats, which allow for a unique look at the bioluminescence directly underneath you. This isn’t the default option, so be sure to ask if it’s important to you.

7. Dress To Get Wet

Wear comfortable clothing, such as shorts and a T-shirt, preferably made of tech or quick-drying fabrics; some splashing is normal during any kayaking outing. Pants and shorts with zipper pockets are useful for storing a credit card, in case you want to stop at a restaurant or bar on the way back to your hotel or Airbnb (no need to take a full wallet or cash). Sturdy walking sandals, knit sneakers, or aqua shoes are all good choices for footwear.

Don’t count on being able to stash extra clothing or shoes with the tour operator; take only what you need.

8. Skip The Sunscreens And Skin Lotions

Wash your hands and feet before the trip, and don’t apply any moisturizer, serums, or lotions. You’ll be allowed to dip toes and fingers in the water, but chemicals from common skin products can kill the dinoflagellates.

9. It’s Okay To Take Your Phone

Your bio bay tour guide will tell you to leave your cell phone behind, ostensibly because its camera won’t be able to capture the glow. This may be true, or it may be an effort to reduce the sharing of images, which might, in turn, lead to a reduction in tour purchases. I regretted listening to this advice. I think I could have used my cell phone camera in manual mode and gotten sufficiently long exposures to get quality and free photos of some of the luminescence.

Bottom line: There’s no harm in taking your phone, as long as you seal it in a floating dry bag, and wear it on a lanyard around your neck. Just be aware that if you accidentally overturn your kayak, you might have trouble retrieving the phone in the dark. And don’t spend all your time taking pictures. The best part of the experience is staying in the moment and enjoying the display.

10. Be Prepared For A Wild Ride

The drive out to the bio bay is a bit like riding a roller coaster without a seat belt. Our bus driver clearly had been making this drive for years, and he knew every pothole and curve in the road — and took most of them at a robust clip. In the dark. I had to pry my fingers out of the seat upholstery after he swerved through small herds of the island’s free-roaming horses. Fortunately, he didn’t hit any.

Pro Tip: About those Viequense horses: They’re not wild, even if tourism brochures and resorts market them as such. All are owned by residents and are set free to browse the island’s grasses when not being used as transportation. Sadly, these beautiful animals are frequently killed in road accidents. If you rent a car, drive slowly and cautiously.

11. Keep Your Expectations In Check

Nature is fickle, and an evening of 100 percent glow might be followed by one of less than 30 percent. To make matters worse, all promotional images of Bio Bay tours are Photoshopped. While it is a breathtaking sight, you will not be engulfed in a happy blue halo, nor will the water light up on its own. What you’ll see is more akin to an underwater shower of glitter every time you or your tour mates dip an oar or hand into the bay.  

12. Bio Bay Tour Without Kayaks

Is there another means of transportation to get to the bay? Yes, there is now an eco-friendly way to visit Laguna Grande without having to kayak. Bio Island is a company that offers an electric motorboat tour that is both fun and safe for the environment.

They use a really quiet electric motor approved by the DRNA. A low-emission gas motor is used until the boat gets into the channel and then they switch to electric. Being a small Carolina Skiff, the boat has a very low profile, not much deeper than the kayak bottoms.

13. Bio Bay Is Virtually Impossible to Photograph

This is because the illumination is not originating from the water itself, but rather the dinoflagellates in the water. The images that you see online are captured using long exposure techniques, and don’t look anything like the real thing. 

However, the elusive nature of capturing the Bio Bay on film doesn’t mean that it is at all subtle. If you go out when the bay is particularly active you’ll never experience anything so stunningly surreal and beautiful. You should only hope that someday you’ll be lucky enough to see it again.

Is Bioluminescent Bay Kayak Trip Worth The Extra Trouble And Expense?

That’s a big yes. Although I can’t speak for Laguna Grande or La Parguera, kayaking Mosquito Bay was as close to magical as an outdoor experience can get. The bay is wide open and hushed, and even with other groups of kayakers out on the water, it felt like we were the only ones. Paddling was relaxed over the hour and a half we spent out on the water. Even the inexperienced kayakers had a great time.

Because I’d read up in advance and scaled my expectations, I wasn’t disappointed. The bioluminescent glow was actually more pronounced than I figured it would be, with miniature fireworks going off each time a boat pushed through the water. It wasn’t the neon blue radiance shown on tour websites, but it still felt otherworldly, like holding a galaxy of tiny stars in my palms. Aside of Puerto Rico, you can also see bioluminescent water on the Southern California coas t.

When Is the Best Time for a Kayak Trip in Bio Bay in Puerto Rico?

Generally, the best time for a kayak trip is around the new moon when there is less moonlight in the sky to interfere with the glow. Many factors affect how visible the bioluminescence is on any given night, including cloud cover which may help to block the moon and its light.

Why Is the Bio Bay Closed for Three Days Each Month During the Full Moon?

The Department of Natural Resources in Puerto Rico does not allow any tours during those days every month so that Bio Bay can get some  “rest” from human interaction.

Can I Go to See the Bio Bay in Puerto Rico on My Own?

No. Bio Bay is only open to tour companies with DRNA permits, not individuals. It is safest to go with a reputable and insured tour company with a tour guide who will explain the biology of the fragile ecosystem there for you.

Can Small Children Go On Bio Bay Tours in Puerto Rico?

Yes, tour companies take infants and young children on their Bio Bay tours. Infant and child life vests are available and the kids will be seated in a parent’s lap in the kayak. Inexperienced kayakers are advised not to kayak with kids.

What Should I Bring for My Bio Bay, Puerto Rico Tour?

You should bring a towel, natural DEET-free bug spray, and some kind of water shoes. For our day tours, you should also bring sunscreen and protective clothing like rash guards and hats if you like.

A specialist in coastal travel, the northeast U.S., and Spain, Robin is a travel journalist and the writer behind the travel blog Once More to the Shore . Her work has appeared in National Geographic , Travel + Leisure , TIME , Smithsonian , Conde Nast Traveler , AFAR , Hemispheres , and a range of other publications, both national and regional.

A New Englander by birth now living in the Hudson Valley, Robin understands the call of the sea, and the allure of rock-strewn beaches and shrouded forests. She also knows that a Maine-style lobster roll — the one true lobster roll — is best paired with a crisp hard cider, and that nothing beats a Rhode Island clam cake.

An honorary Spaniard by marriage, Robin visits Spain at least once a year, and has never met a town or tapa she didn’t like. When she’s not writing about travel, she can usually be found exploring regional lakes in her inflatable kayak, hiking the Taconics, or attempting to snap the perfect photo of the wildlife around her home.

Monday - Friday: 8:00 AM - 5:00 PM 787.779.9075 [email protected]

Vieques Bio  Bay Kayak Tour from San Juan Ground Transportation from San Juan Wi th Ferry Ticket s

Experience  vieques island.

The Vieques Bio Bay + Beach Day Trip is the Best Alternative to Experience Vieques Island from San Juan!

Chill and relax at *S un Bay Beach and Enjoy a Once-in-a-Lifetime Bioluminescent Experience!

This is the one adventure you should not miss while visiting Puerto Rico. Experience relaxation at one of the most beautiful beaches in Puerto Rico, Sun Bay Beach, h ave dinner and walk by the amazing Malecon at Esperanza, and then Paddle on a Clear Bottom Kayak through the mystical mangrove channels and feel the adventure as you explore the captivating glowing water of Mosquito Bay.

You will feel as if you are on another planet as the water comes to life in a magnificent glowing spectacle that must be seen to be believed! An adventure not to be missed while on Vieques Island with all transfers included from San Juan and Vieques!

Join this full y guided trip into one of the most amazing natural phenomena of the world with our tandem CLEAR BOTTOM KAYAK! This pristine ecosystem teems with astonishing marine life, inhabiting a secluded bay protected by mangrove forests. You will meet our glowing friends, the Pyrodinium Bahamense, a microscopic plankton capable of producing natural light at the touch of your hand!

The adventure to Puerto Mosquito can only be described as magical, creating memories that will last a lifetime!

*The beach stop on the itinerary will be Sunbay or Esperanza Beach depending on weather conditions and timing on the itinera ry .

Day Trip  Highlights

Experience Vieques Island.

Visit Sun Bay Beach or Esperanza Beach 

Guided Bio Bay Clear Bottom Kayak Tour at Mosquito Bay.

Walk by El Malecon in Esperanza.

All Transfers Included.

We encourage customers to book at least 3-4 weeks far in advance as possible to avoid disappointment. Last-minute booking requests can be hard to fulfill.

Bio bay kayak tour + beach day package from san juan.

Vieques Bio Bay Day Trip 

Monday to Friday!

This is an 11 -hour Trip

Round Trip Ground Transportation from San Juan  to Ceiba Ferry Terminal, 12:30  pm departure from San Juan.

Ferry Round Trip from Ceiba to Vieques Island

Ferry Tickets are included

Monday - Friday:  3:00 pm  Ferry Departure &  9:3 0 pm Return

Land Transfers in Vieques

Visit Sun Bay Beach or Esperanza Beach (1-hour)

Stop at El Malecon at Esperanza for a walk or Dinner 

Guided Bio Bay Clear Bottom Kayak  Tour

Light Snacks (Provided at Ceiba Ferry Terminal)

We arrive b ack in San Juan around 11:45  pm approximately

* The beach stop on the itinerary will be Sunbay or Esperanza Beach depending on weather condition s and timing on the itinerary .

Age Requirement: 4 +

Combined Kayak Weight Limit: 380 pound s ​

Requires a minimum of 6 guests.

Please Note: This ferry trip takes a minimum of 6 people to operate. If the tour does n ot reach this minimum by the date of your trip, then it can be rescheduled or canceled! Refund provided.

From San Juan: $185  pp.

Ferry departure from *Ceiba

Click the Book Now button

Day Trip Details

1. pick-up at hotel, departure from san juan.

Our agent will contact you  by text message and notify your Hotel pick-up time one day prior to the trip. Departure from San Juan to Ceiba Ferry Terminal is at 12:45  pm.

Travel time from San Juan to Ceiba Ferry Terminal is 1-hr. and 10 minutes

We provide light snacks and beverages once we arrive at Ceiba Ferry Terminal. 

2. FERRY RIDE TO VIEQUES  ISLAND

Ferry check-in is 1 hour prior to the scheduled ferry departure time.

Th e Ferry travel time to Vieques  Island from Ceiba is around 45-60 minutes approximately, depending on the sea weather conditions.

Monday-Friday:

The ferry departs at 3:0 0 pm (Check-in at 2:00 pm)

The ferry returns at 9:30 pm (Check-in at 9;00 pm)

3. SUNBAY BEACH / ESPERANZA BEACH

Sunbay Beach, and Esperanza Beach  in Vieques are one of the  most amazing places to relax and enjoy beautiful crystal-clear waters in a  peaceful paradise! We will visit one or the other depending on itinerary timing and sea weather conditions. 1-hour

Half-moon-shaped Sun Bay Beach has it all: palm-lined sand, clear turquoise waters, sparse crowds, and pretty much all the facilities a beach-goer could want. As one of the most accessible beaches on Vieques — as well as the only beach offering public facilities — it’s a popular option for day-trippers to the island. The water is calm, with only a few gentle waves, so it’s an ideal beach for swimming, particularly at the far eastern end.

4. WALK BY AND HAVE DINNER  AT EL MALECON! 

El Malecon is a favorite hangout for both visitors and residents on the charming coast of Barrio Esperanza on the south side of Vieques.  Visitors can choose from a variety of restaurants ranging from casual to finer cuisine with the bonus of a gorgeous sunset every afternoon of the year.

5. GUIDED BIO BAY CLEAR BOTTOM KAYAK TOUR

You will feel as if you are on another planet as the water comes to life in a magnificent glowing spectacle that must be seen to be believed! An adventure not to be missed while on Vieques Island.

6. FERRY RIDE BACK TO CEIBA

After a full day on Vieques  Island, we will take a ferry ride back to Ceiba.

7. TRANSFER BACK TO SAN JUAN

1-hr and 10-minute ride back to San Juan, we will arrive in San Juan around 11:45  pm. 

Planning & Restrictions

What to bring.

One comfortable bag or backpack

Water shoes

Insect Repellent - Deet Free

Sun Protection (i.e. biodegradable sunblock, hat, sunglasses, long sleeve shirt, rashguard, etc.)

Set of dry clothes

Snacks & drinks

Your medicines, if you have a particular condition only

Cash for restaurants, souvenirs, tips, etc.

DO NOT BRING

Expensive or non-waterproof cameras

Any valuable that cannot get wet

MINIMUM PARTICIPATION RESTRICTIONS

The Ferry Vieques Day Trip requires a minimum of 6 guests . We will call you to discuss your options if the minimum is not met.

HEALTH & AGE RESTRICTIONS

Not recommended guests with:

Pregnant w omen 6 months or more

Age requirement: 4+

Heart conditions

Recent surgery.

Ferry & Schedule Notice

We do not provide private maritime transportation to vieques. the tickets included in our vieques ferry package are for the public ferry. the puerto rico maritime transportation authority (prmta) operates this ferry. we are not affiliated with the prmta. therefore, we are not responsible nor can control the ferry schedule in any way., our company promotes a 3:00 pm departure to vieques from ceiba, in the event we receive tickets for a later departure you will be notified in advance and/or on-site. your group will be offered the option to confirm an excursion with a later departure, reschedule to another day, reschedule to another excursion, or cancel with a full refund..

For this reason, we must be at the Ceiba Ferry Terminal at check-in time. Otherwise, you may miss the ferry. In that case, you will not be able to get to Vieques on time for the tour. Finally, the excursion start time is subject to the arrival time of the ferry to Vieques.

I VENTURES does not sell ferry tickets.

Ceiba Ferry Location