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Bio-Bay Kayak Tour: Puerto Rico's Glowing Waters
3.5
14 Ratings
Las Croabas
Embark on a kayaking adventure in the luminous waters of Puerto Rico’s renowned Bio-Bay. Witness the water illuminate with each stroke. Gain insights into this unique natural wonder from knowledgeable guides. Suitable and enjoyable for all skill levels.
Embark on a kayaking adventure in the luminous waters of Puerto Rico’s renowned Bio-Bay. Witness the water illuminate with each stroke. Gain insights into this unique natural wonder from knowledgeable guides. Suitable and enjoyable for all skill levels.
Duration:
2 hours
Cancellation:
24 hours
Highlights
- Puerto Rico Access Eco Tours - Visitors will gather at our kiosk in Fajardo to prepare for their Bio-Bay adventure! A briefing will be provided on the correct use of kayaks and paddles.
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Bahia Fajardo - The tour begins at Bahia Fajardo, where participants will follow our guide through a mangrove channel leading to the Bioluminescent Bay.
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- Puerto Rico Access Eco Tours - Visitors will gather at our kiosk in Fajardo to prepare for their Bio-Bay adventure! A briefing will be provided on the correct use of kayaks and paddles.
- Bahia Fajardo - The tour begins at Bahia Fajardo, where participants will follow our guide through a mangrove channel leading to the Bioluminescent Bay.
- Laguna Grande - Exiting the channel and entering the lagoon is a truly awe-inspiring experience! Adventurers are welcomed by a vast stretch of calm, rippling water surrounded by mangrove forests, with the majestic mountains of the El Yunque Rainforest in the distance – a deep sense of tranquility envelops everyone who enters!
- Faro Cabezas de San Juan - Enjoy the view of the Fajardo Lighthouse, constructed by the Spanish in the 19th century, and witness the incredible natural wonder we are here to see – the shimmering bioluminescence as you paddle through the sparkling waters – a truly unique experience found in only a few places on earth!
- El Yunque National Forest - A vast expanse of gentle, rippling water surrounded by mangrove forests greets the adventurer, with the mountains of the El Yunque Rainforest towering in the distance – profound tranquility envelops all who enter!
- Bahia Fajardo - We return to the starting point through the mangrove channel.
- Puerto Rico Eco Tour - We arrive back at the starting point to return all equipment.
What's Included
- Use of Kayak and Oar for duration of the tour
- Guided service
- Safety life jacket
- Admission
- Use of Kayak and Oar for duration of the tour
- Guided service
- Safety life jacket
- Admission
What's Not Included
- Transportation service
- Transportation service
Additional Information
- Maximum weight limit of 450 lbs for each kayak.
- Maximum weight limit of 225 lbs for each participant.
- Minimum age of 6 years for participation.
- Participants under 18 years old must be accompanied and paired with an adult (18+).
- Life jackets and all mandatory equipment are provided.
- If your group is an odd number, the single one will be riding…
- Maximum weight limit of 450 lbs for each kayak.
- Maximum weight limit of 225 lbs for each participant.
- Minimum age of 6 years for participation.
- Participants under 18 years old must be accompanied and paired with an adult (18+).
- Life jackets and all mandatory equipment are provided.
- If your group is an odd number, the single one will be riding with another single from another group.
- THE TOUR’S STARTING TIME MAY BE UP TO 45 MINUTES BEFORE OR AFTER THAN THE ONLINE SCHEDULE DUE TO CHANGES IN THE SUNSET AND SEASON
Location
Puerto Rico Eco Tour
Once you arrive at the meeting point, park and head over to our kiosk labeled "Puerto Rico Eco Tours" to get checked in.
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Customer Ratings
3.5
(14 Ratings)
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Tony_t
May 3, 2026
Felix is the best! - Truly a fun experience! Felix, Onyx, and Emmanuel did such a good job!! Not only did they told us how to kayak but we even got to see of the Bioluminescence in the off season!
Review provided by Viator
Wesley_x
Apr 11, 2026
Kayak in the bay - Amazing, fun and exciting experience.
An exciting activity in the dark, plus a challenge of synchronicity and strength.
Review provided by Viator
Justin_r
Mar 23, 2026
Nightime adventures in Fajardo - Fantastic time and such a different experience. Guides were excellent and we had a great time. Wonderful moments and memories with my daughter.
Review provided by Viator
Farrah_f
Feb 20, 2026
Good Time! - The guides were great! Lots of fun. Need to be in good shape to kayak through the mangroves. Everyone throws a big tarp over their heads to really see the bioluminescence because the light pollution from Fajardo makes it hard, but we also saw some as we were kayaking back.
Review provided by Viator
Tsara_w
Apr 18, 2026
Wear a bathing suit - You will walk into stinky water, it may be as deep as or deeper than your waist. Plan accordingly. If you do the 8pm tour there is no lighting (although a passing tour guide may temporarily light the way),and you will be navigating under mangrove trees through current. There is two way traffic including kayaks and motor boats, while through narrow passage. Make sure you can paddle 3 miles, have great communication with your partner! You will be smacked by other kayakers, you will get pushed into mangroves and you may get injured. The bioluminescence was significantly over-dated and huddling under a tarp was wet and slightly gross. Although we had a good laugh, we were lucky to have had a change of clothes and good spirits. I would probably have given a better rating had, at any point, someone said that the way into the kayaks was as deep as it was. Granted we could have arrived wearing suits, most folk in our group (of 30, not 12 like the site says there will be) did not and the general consensus was shock and minor upset.
Review provided by Viator
Jessica_r
Mar 28, 2026
Ok trip but bioluminescence was underwhelming - We did this trip yesterday and I have to say the bioluminescence was rather underwhelming. The photos made it look like we would see it while paddling. They had us put a giant tarp over our heads in order to see it. The kayaking was fun, but definitely need to be able to do 3 miles. Also, they said they would post pictures of everyone. The photos they posted were very blurry, my family has a good laugh at them after the long night.
I would say our guides did a good job.
Review provided by Viator
Maria_l
Mar 22, 2026
Helpful tips to manage expectations w/ kids. - This can be a great adventure, but there are some things that would have been helpful to manage expectations.
We did the 8:00 pm tour in mid March. I thought the kayaks through mangroves was a great adventure! The others in my group felt unsafe as you genuinely could not tell if you were headed straight into the hard mangroves or were going to get your eye poked. My 8 year old cried a lot.
This tour company had friendly guides. This tour company also had the most notably dim lights (others kayaks were much brighter and well marked). The dim lights on our kayaks made it more challenging to keep tabs on kayaks in front of you and awareness of where sides of mangroves were.
The bioluminescence was what I was most excited about for my kids to see. (Ages 17,15,13,8). It was neat and the bay itself was beautiful. But the bioluminescence didn’t look anything like the pictures. If you know that ahead of time, you can avoid disappointment. It looked like bubbles in a pool with a light on at night. Also, the tarps they use to try and make it darker were damp and sandy and did not enhance the experience.
The stars the guides pointed out in bay were the best part. We enjoyed that!
One more note - the directions say to wear something that could get wet. It did not specify that you are walking in waste deep water to reach the kayaks. Had I known that - I could have better prepared my youngest. It was a little spooky. Choppy ocean water at night and you start off the ride soaked from waste down. Again - not a deal breaker but could have helped manage expectations.
Review provided by Viator
Erin_t
Mar 19, 2026
Fun, but not for everyone. - It was a great tour. This is not for all experience levels even though it’s advertised that way. Other than that it’s a great adventure.
Review provided by Viator
Maria_s
May 1, 2026
Don’t do unless you’ve done some homework. - Be informed, April is worst month for bioluminescence. Wish we were told that ahead of time.
We arrived at 5:15 as requested time for a 6:00-8:00 activity. No one was there until 6:05. Then we were told it would start at 6:30. The whole place reeked of rotting seaweed which suffocates the organisms and greatly reduces the bioluminescence. Guide was a nice guy but safety instructions and their photos were taken alongside the rotting seaweed. I was gonna gag. There are warnings about toxic effects of sunscreen and bug spray to the organisms but we were waded out to the kayaks washing off our bug spray and sunscreen into the water. Kayak experience was fun and interesting especially in the dark if you’re up for that. You will get wet, and dirty and DO NOT wear nice sneakers but good water/reef shoes. We saw virtually NO bioluminescence at all. I mean zero and that was after they dropped a wet smelly tarp over us to try to darken things even more. Didn’t help one bit. Will try this again some other time but not near Fajardo and certainly not in March-May.
Review provided by Viator
Raul_g
Mar 5, 2026
Stay away - Unfortunately your lead instructor did a terrible job keeping our party together. As you know this trip has had its challenges. He easily could have kept my daughter 16 and my wife with my boat who was put with another single rider. I’m not a complainer but I do speak up when efforts are not made to accommodate a paying customer.
Review provided by Viator
