Available languages
2 hours
Mobile ticket
Experience the glowing waters of Fajardo’s famous Bioluminescent Lagoon with Puerto Rico’s most awarded aquatic adventure provider! Move your arms through the water on a tandem kayak, and watch how millions of microscopic plankton light up your hands in magical pixie dust spectacle. Paddles leave behind a swirl of blue light and stars cover the sky on this mystical night kayak expedition across Las Cabezas de San Juan Nature Reserve. Laguna Grande is the only bioluminescent lagoon in the world, and one of five year-round bioluminescent bodies of water in our globe!
Service animals allowed
Not recommended for travelers with spinal injuries
Not recommended for travelers with poor cardiovascular health
Travelers should have at least a moderate level of physical fitness
Maximum Weight Limit: 240 lbs PER ONE GUEST | up to 425 lbs COMBINED PER KAYAK
Minimum age is 6 years old | Participants Age 6-13 must be accompanied by an adult on the same kayak. Participants 14-17 must have an adult participating on the tour.
Wear Comfortable clothes that can get wet (bathing suit shorts), shoes that can get wet (flip flops / water shoes), bring a towel and change of clothes (for after the excursion).
Odd number parties will be assigned on double kayaks during the tour.
Bring your cell phone during your travel (in the event that we need to contact you, or you need to contact us prior to the excursion)
This excursion requires a minimum of at least 6 total participants in order to provide the tour. In the event this minimum is not met, we will call 1-2 days prior to the excursion to go over alternative options (i.e. reschedule for a different date or time that has the minimum requirement, payment options for a private excursion, or cancel without penalty)
For safety reasons we requiere all guests are able to communicate in English or Spanish.
Not recommended for travelers with back, neck, wrist, arm, leg problems, recent surgeries / injuries and/or cast.
Not recommended for travelers who are prone to panic attacks
Not permitted for pregnant travelers
Maximum weight per person is 240 lbs
For a full refund, cancel at least 24 hours before the scheduled departure time.
Paddle your way through the mystical mangrove channels leading to “Laguna Grande.” There, you will meet our glowing friends, the Pyrodinium Bahamense, a microscopic plankton capable of producing natural light at the touch of your hand! Explore these amazing organisms up close as your professional eco-guides take you to discover all its secrets. Learn how this fragile and unique ecosystem maintains a perfect balance of life and what you can do to protect such a special place. This famous bio bay kayak tour includes interesting interpretations about the reserve's fragile ecology, star constellations and a fascinating encounter with billions of bioluminescent organisms. Watch how every stroke of your paddle leaves behind a glowing swirl of blue light and fish light up their path like shooting stars in the water. The adventure to Laguna Grande can only be described as magical! Maximum Weight Limit: 240 lbs PER ONE GUEST | up to 425 lbs COMBINED PER KAYAK
Kayaking 101 and Safety Pre Ride Instructions
Tandem (two-person) kayak
Paddle through the Red Mangrove Forest
Paddles, backrests and Extrasport USCG Approved life jacket
Eco Friendly Insect Repellent
Light snacks and Refreshments
Gratuities
1,908 reviews
Total reviews and rating from Viator & Tripadvisor
G721FCruthc,Mar 12, 2026
- Review from Tripadvisor
Absolutely great experience! All the guides are very knowledgeable. Huge thank you to Neisha, Daniel, Francisco, Miguel and Ineliz. Yall made this an unforgettable experience.
sanandreas5,Mar 12, 2026
- Review from Tripadvisor
Miguel, Lori, Chris, Brian, and our host Neisha made this tour so much fun! It was an amazing experience and I can’t wait to do it again.
hotairballoon04,Mar 12, 2026
- Review from Tripadvisor
Quite honestly, I’m very disappointed I can’t write a raving review like everyone else that’s recently posted. We were the last group of the evening and other than Lori, the other guides (Chris and Brian) were not friendly at all. And Francisco(possibly incorrect name but had long blond curly hair) was mean, unpleasant and rude. I honestly wish we could rate each guide individually as I would give Lori a 10 out of 10. The experience itself was amazing and I would highly encourage people to do the Bioluminescence Bay in Laguna Grande but I would suggest using a different company.
alf0nzaw,Mar 12, 2026
- Review from Tripadvisor
Great guides. Explained everything and made sure we were safe
Ryan S,Mar 12, 2026
- Review from Viator
We had so much on the bio bay kayak tour in Fajardo. The staff was helpful, informative and kind. We are beginner kayakers and we were a little nervous going in to a night kayak adventure. Thanks to the staff those nerves were put to rest. Nothing scary about it. We would definitely do this again!


kaley alexandra,Mar 11, 2026
- Review from Tripadvisor
We had a great time on the kayaks with Laurie, Chris, Francisco and Brian. I had only ever kayaked a few times before, so I was a bit nervous given that we were kayaking up and down a 1 mile channel, but the staff provided a comprehensive overview of kayaking techniques before the tour, which was very helpful. I also really enjoyed the informational section when we were on the water, as Laurie explained the science behind the bioluminescence and showed us some constellations. I would recommend this tour to anyone in the Fajardo area, or in general visiting Puerto Rico. This is one of five locations in the whole world that features the glow year-round; it’s a very special thing to witness. You don’t want to miss out!
F8208PMjanineb,Mar 9, 2026
- Review from Tripadvisor
Loved it Amazing thing to do and would do it again in a heart beat. Staff were amazing a pulled our friends there and back…
landoa2026,Mar 9, 2026
- Review from Tripadvisor
Lori, Miguel, Brian, Neisha, and Chris were all great hosts! Expansive knowledge of the nature around us. Kept us safe and made it a fun experience.
J5621KJevap,Mar 9, 2026
- Review from Tripadvisor
Fantastic professionals who have helped us at all times and made us the experience very pleasant. Especially Bryan for patience!!
N2687LGnicolem,Mar 9, 2026
- Review from Tripadvisor
Fantastic. Miguel Lori and Brian and Neisha gave us an amazing experience!!!
Operated by Kayaking Puerto Rico