Vieques island Biobay Kayaking Tour
Overview
Available languages
1 hour 30 minutes
Mobile ticket
Please read all info!
Join us for a once-in-a-lifetime adventure in fully clear kayaks in the world’s brightest bioluminescent bay! Watch fish light up as you paddle while learning the science behind this magical natural wonder
Meeting Location: Across from the Sun Bay Beach entrance/sign in Esperanza✨️ Meeting Time: 25 minutes before your scheduled tour time. We have a 10 min check-in window for all tours.
Departure Policy: Tours run on schedule and depart at the end of the check-in window, exactly 15 min before your tour time.
✨️Vieques is a separate island from mainland Puerto Rico. We recommend booking ferry tickets online 2–3 weeks in advance. Overnight stay recommended :) Guests on the earliest tour can catch the latest ferry on weekdays at 9:30 PM. On weekends the latest ferry is 9 PM, so we do not recommend trying to return on that ferry as it cuts time very close.
✨️Free cancellation BEFORE the 24-hour policy. Missed tours are non-refundable. $25 per person to reschedule
Additional Info
Infants are required to sit on an adult’s lap
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Suitable for all physical fitness levels
Not recommended for wheelchairs/strollers due to very rocky shorline and concrete step down
Note, Vieques is a seperate island from puerto rico make sure you plan ferry/flight tickets to the island 2/3weeks in advance
service animals allowed only if they are small enough to sit on your lap in the kayak
Weight limit is about 260 per person. we have 2 person kayaks with max weight as 400lbs the weight needs to distributed between 2 people for the kayaks to not flip. if you have someone over 260lbs please let us know
What To Expect
Experience the Magic of the World’s Brightest Bioluminescent Bay Step into a glowing world beneath the stars with our clear kayak tours of Mosquito Bay, Vieques PR — officially recognized as the brightest bioluminescent bay on Earth! paddle through glowing waters in a transparent kayak, where every stroke lights up the water. Learn about dinoflagellates and how they thrive in Mosquito bay. See fish light up the water as they swim past you on our hour long guided kayaking tour, experience just how increible nature is!
Options
Clear kayak biobay tour
Clear kayak
Late tour
Late tour
What‘s Included
Transportation from meeting point to Biobay and back
Clear Kayaks & paddles
Life Jackets
Guide (Spanish, English)
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
429 reviews
Total reviews and rating from Viator & Tripadvisor
Most beautiful experience!
Joshua P,Jun 8, 2026
- Review from Viator
5.00Such a beautiful experience, I wish it would’ve been longer!! We went on a very dark night so the bay was extra bright. I recommend going during the new moon phase that way it’s extra dark to see the bioluminescence better. Staff was very nice and the vibes were amazing. Very educational as well! 1000% recommend!
Great tour of the incredible biobay
Jon C,Jun 8, 2026
- Review from Viator
5.00This is a great experience. The guides and tour were amazing. They explained about the bay and made sure we got to learn about its unique aspects. The Biobay itself is incredible. Definitely something worth seeing
Wonderful!
Jaymee H,Jun 5, 2026
- Review from Viator
5.00Absolutely top-notch. DEFINITELY do the glass-bottomed kayaks! We saw so much color under our kayak and would have missed all of this in a standard boat. Our guide was fantastic!
Beautiful location! We...
Sabrina T,Jun 4, 2026
- Review from Viator
5.00Beautiful location! We had very friendly and knowledgeable tour guides. Even with a full moon it was definitely worth the trip
Too much moonlight
Kim W,May 29, 2026
- Review from Viator
3.00Don't go when the moon is out! We saw no bio luminous effects. It was fun kayaking at night.. go when new moon or cloudy! The moonlight kills the trip.
Great customer service...
Mariana J,May 29, 2026
- Review from Viator
5.00Great customer service and once in a lifetime experience! Felt safe with the tour guides, they were friendly and knowledgeable, and easy to talk to.
Maybe due to moon...
Frank Z,May 29, 2026
- Review from Viator
4.00Maybe due to moon conditions, don’t feel special about it ,maybe don’t go to the activity at full moon .
The conditions were windy...
Rhonda C,May 26, 2026
- Review from Viator
5.00The conditions were windy so it was challenging for some kayakers but our guide took good care of us and we had a wonderful time.
Not a good experience
Bradley S,May 25, 2026
- Review from Viator
1.00Impatient guide - windy conditions- no experienced riders. Asked if we watched a video and then took us in the water. We quickly drifted -10 riders a 1 guide - guide himself even capsized into the water - 4 of the 10 had to be towed back to land - Not a tour I’d recommend unless you are very experienced. They didn’t have the hardware or the guides required for a safe and fun experience. Choose another company-
Excellent
andreacarolinar219,May 24, 2026
- Review from Tripadvisor
5.00Excellent experience; the weather and lighting conditions are ideal for maximizing the experience. The guides were very kind and took the time to give us an explanation in Spanish, always attentive to everyone in the kayaks, ensuring a lot of safety.
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Operated by Alikei Adventures