Bio Bay Kayak Tour in Fajardo
Recommended by 93% of travelers
Badge of Excellence
Fajardo, Puerto Rico
- 2 hours (approx.)
- Mobile ticket
- Offered in: English
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Overview
Take a night kayaking tour from Las Croabas, through the mangrove channels of Las Cabezas de San Juan Nature Reserve to Laguna Grande. Here you can find the billions of microscopic plankton that live in the water and light up at the touch of your hand to create a beautiful, iridescent glow in the water. Learn about this natural phenomenon and its fragile ecosystem from your informative guide as you paddle through the lagoon. Please note the weight limit is 240 pounds per person.
- Take a 2-hour night kayaking tour to the Laguna Grande from Fajardo
- Paddle through the lagoon and see how the water “lights up”
- Learn about this natural phenomenon and ecosystem form your guide
- All necessary equipment and light refreshments are provided
What's Included
- Kayaking 101 and Safety Pre Ride Instructions
- Paddle through the Red Mangrove Forest
- Tandem (two-person) kayak
- Light snacks and Refreshments
- Eco Friendly Insect Repellent
- Paddles, backrests and Extrasport USCG Approved life jacket
- Gratuities
Meeting and Pickup
Meeting point
- Kayak Village987 Street, Fajardo, 00738, Puerto Rico
Once you arrive to Kayak Village in the area of Las Croabas, Fajardo. Meet your host at Kiosk #11, second one on your right side after entering the gate. Parking is available free of charge, on the roundabout towards the left side of the entrance.
End point
This activity ends back at the meeting point.What To Expect
1
Kayaking Puerto Rico | Snorkeling & Bio Bay Tours
2
El Faro de las Cabezas de San Juan
3
Laguna Grande
Additional Info
- Confirmation will be received at time of booking
- Not wheelchair accessible
- Service animals allowed
- Not recommended for travelers with back problems
- No heart problems or other serious medical conditions
- Travelers should have a moderate physical fitness level
- 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
- This tour/activity will have a maximum of 30 travelers
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Cancellation Policy
You can cancel up to 24 hours in advance of the experience for a full refund.
Traveler Photos
Featured review
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!
Reviews
4.8
based on 2,212 reviews
Review summary
Last 12 months
51 reviews
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Travelers praise the night kayaking tour for its memorable adventure through mangroves and bioluminescent waters, highlighting the stunning natural scenery and serene atmosphere. Guides and instructors receive consistent commendation for their knowledgeable, patient, and bilingual support, which enhances the educational and enjoyable experience. The tour is noted for being accessible to beginners, offering clear instructions and a unique opportunity to witness natural wonders in an engaging way.
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The staff and tour were great but there was hardly any bioluminescence. we had to put a tarp over our heads just to see any of the glow and even that was minuscule. I guess there is an algae problem that is taking oxygen from the bioluminescent plankton for the last few months. Something should be said before booking this was a completely different experience from what we were expecting.
Response from Host, Nov 2026
Thank you for sharing your experience, Derek, and for your kind words about our team. We’re sorry the glow was so faint and that the experience fell short of your expectations. Your concern about having clearer information before booking is understandable. We appreciate you bringing this to our attention. Please contact us through your Viator booking so we can review the details of your visit and discuss your concerns directly.
Our tour guides were knowledgeable and we loved kayaking through the mangroves and see a part of puerto rico that was rare. Stars, moon, and nature. Bioluminescent sparkled low glow but worth the trip. Loved that we didnt need to take a ferry and it allowed us to do a beach day.
Response from Host, Oct 2026
Thank you, Sarah! We’re glad you enjoyed the mangroves, stars, and our guides’ knowledge, even with the softer glow!
Great tour! Daniel and the crew were amazing!! Loved the kayaking at night! Very informative and friendly
Response from Host, Oct 2026
Thank you, Louis! We’re glad you enjoyed nighttime kayaking with Daniel and the crew. Hope to welcome you back!
Fun experience. Kayaking through the mangrove "tunnel" at night was as fun as seeing the little bioluminescent plankton. Conditions for the plankton weren't at their best. Nevertheless, we were able to see plenty of the little critters lighting up like sparkles. Guides Francisco, Mario and Izabel were helpful, friendly and fun. They made it a great experience.
Response from Host, Oct 2026
Thank you, Eric! We’re happy you enjoyed the mangrove paddle and sparkles with Francisco, Mario, and Izabel!
Professional, friendly, funny, and well organized crew. Lots of fun and workout. if you never kayaked before they will “hold your hand” throughout your journey. 11/10
Response from Host, Oct 2026
Thank you, Vladimir! We’re glad our crew helped you feel comfortable and made the paddle so much fun!
The guides were awesome. We had a very good experience, despite a storm passing close by. I'd like to do it again sometime and will definitely come back to Kayaking Puerto Rico when I do.
Response from Host, Sep 2026
Thank you so much for the kind words! 💙 We’re glad you still had such a great experience despite the nearby storm and that our guides helped make the evening memorable. We’d love to welcome you back for another Bio Bay adventure next time you’re in Puerto Rico! ✨🛶
Wonderful instructors, I rode a kayak for the first time and was able to experience a once in a lifetime adventure with my boyfriend.
Response from Host, Sep 2026
Thank you for sharing this! 💙 We’re so happy your first kayaking experience turned into such a special adventure for you and your boyfriend. ✨🛶 Our guides love helping first-timers feel comfortable on the water, and we’re honored to have been part of such a memorable experience!
We had an amazing time with our 9 & 7 year old kids on the nighttime kayak! Miguel & Lori were fantastic, patient, and so helpful—even towing my husband and me when our kids gave up paddling halfway through! They made the experience fun and memorable for our whole family. Highly recommend this tour and this wonderful team!
Response from Host, Sep 2026
Thank you so much for the wonderful review! 💙 We’re thrilled your family had such a memorable night on the Bio Bay. Miguel and Lori will be so happy to hear your kind words—especially about helping keep the adventure going when the little paddlers were ready for a break! 😄🛶✨
We truly appreciate the recommendation and hope to welcome your family back for another Puerto Rico adventure someday!
It depends on alot of factors, on how your experience will turn out. Your tour guide will let you know, what to expect.
Response from Host, Oct 2026
Thank you for your feedback. Natural conditions can affect glow visibility, and we appreciate you highlighting the importance of setting expectations.
Had a really great time. The kayaking at night through the mangroves itself was really enjoyable, but the bioluminescence was pretty poor in our visit
Response from Host, Oct 2026
Thank you, Paul Rene! We’re glad you enjoyed the nighttime mangrove paddle and are sorry the glow was softer during your visit.
Really disappointing experience. We spent half a day planning around the bioluminescence tour and were excited to see it, but there was little to no visibility due to light pollution. I really wish this had been communicated clearly beforehand so we could have made an informed decision about whether to go.
Instead, we kayaked for nearly two hours at night through unpleasant-smelling water and ultimately saw no bioluminescence at all. The guides showed us photos of fish and other things we might have seen, but if the experience was going to consist mostly of looking at pictures, we could have done that comfortably at home.
I understand that nature can be unpredictable, but when visibility has been consistently poor because of environmental conditions, guests should be informed before booking or before heading out.
Staffs were friendly and still trying their best in the poor condition, so I'm giving one more star.
Response from Host, Oct 2026
We’re sorry the glow and advance communication fell short, Lizzie. We appreciate your kind words about our staff. Please contact our team with your booking details so we can review your experience and concerns directly.
We really enjoyed the night kayaking and were rewarded with some glow in the lagoon. We were warned that the glow was not as good right now but we chose to go anyway. No regrets. It was a fun adventure either way and we did get to see enough of the bioluminescence to make it all worth while.
Response from Host, Oct 2026
Thank you, Gretchen! We’re happy you enjoyed the nighttime paddle and caught some glow. We appreciate you sharing your experience!
Very unique experience! The staff did a great job on the way out and while in the lagoon. Red tide had made the bio bay less visible, which no one could help. However, the return was very difficult, having to fight the tide, very dark and the group had a hard time. Would have liked more lighting for the return & more staff to assist.
Response from Host, Oct 2026
Thank you, Meagan. We’re glad you enjoyed the lagoon and are sorry the return paddle was difficult. We appreciate your feedback about lighting and guide support; please contact our team if you’d like us to review your visit.
We had such an amazing time on the bioluminescent night kayaking tour with our family! The entire crew was incredibly friendly, welcoming, and patient. It was the first time kayaking for many of us, and they took the time to help everyone feel comfortable and confident throughout the tour.
Although the water wasn’t glowing as brightly as we had expected, it was still such a unique and unforgettable experience. The guides made the trip fun from start to finish, and their positive attitudes really made a difference.
I would absolutely recommend this tour to anyone visiting the area. It was a memorable experience, and we’re so glad we did it!
Response from Host, Oct 2026
Thank you, Jayda! We’re glad your family felt comfortable and supported on your first paddle. We appreciate your kind words, even with the softer glow that night!
Thank you for a fun and informative tour of the bay. We had fun learning and enjoying the moonlight. Thanks Miguel, Emanuel etc!
Response from Host, Oct 2026
Thank you, Eugene! We’re happy you enjoyed learning about the bay and paddling under the moonlight with our team!
Great tour if you have the opportunity to take it. There's place to secure your valuables while on the kayak and the tour guides are extremely knowledgeable, patient with new kayakers, and speak both English and Spanish. Will be doing this again
Response from Host, Oct 2026
Thank you, Edward! We’re glad you enjoyed our guides’ knowledge and patience. We look forward to your next paddle with us!
Misleading advertisement. Viator is not advising that the sargassum has killed the plankton that produces the bioluminescence, so it’s just a night time 2 mile kayak tour through a mangrove forest. The actual company— kayaking Puerto Rico— is transparent and advises that there is little to no glow, but viator does not communicate this to guests. Between the tour price and the transportation from old San Juan, this tour cost us nearly $400 to kayak in the dark for an hour and a half. Do yourself a favor and contact the kayak companies directly. They are good, honest and transparent. Viator is clearly not.
Response from Host, Oct 2026
We’re sorry the booking information left you expecting a visible glow, Susana. We understand your disappointment and appreciate your recognition of our team’s transparency. Thank you for raising this communication concern.
The guides were so patient and kind and informative. They answered every question and were happy to share their knowledge of the bioluminescent bay and Puerto Rico in general. We weren’t able to see any glow the night we went but the tour was still a great experience. I’d be happy to go again.
Response from Host, Jul 2026
Thank you for sharing this! We’re so glad to hear our guides made the experience patient, kind, and informative, and that you still had a great time learning about the Bio Bay and Puerto Rico. 🛶🌙
The glow is a natural phenomenon, so visibility can vary from night to night, but we truly appreciate your understanding. We’d be happy to welcome you back for another chance to experience the magic of the bay!
There was little visibility of any bioluminescence glow but the experience was great! It is a workout though so not recommended if you’re not able to paddle for a long time.
Response from Host, Jul 2026
Thank you for sharing your experience! We’re glad to hear you still had a great time on the Bio Bay Kayak Tour, even with limited visibility of the bioluminescence. 🛶🌙
The glow is a natural phenomenon and can vary from night to night, and you’re right that the kayaking can be a workout. We appreciate you sharing that helpful note for future guests and thank you for joining us in Fajardo!
It was amazing but we couldn’t figure out how to get our pictures from the tour guides so make sure to ask.
Response from Host, Oct 2026
Thank you, Sarah! We’re glad you enjoyed the tour. Please contact our team with your booking details so we can help you locate your photos.
What an incredible experience! The Bio Bay Kayak Tour in Fajardo was one of the highlights of our Puerto Rico trip. From the moment we launched our kayaks, the guides were friendly, organized, knowledgeable, and made everyone feel comfortable and safe.
Paddling through the mangrove channels at night was an adventure all on its own, and seeing the bioluminescence light up the water was absolutely magical. Pictures don't do it justice—you truly have to experience it for yourself.
The guides were fantastic throughout the entire tour, sharing information about the bay and making sure everyone stayed together and had a great time. Their energy and enthusiasm made the experience even more memorable.
We had an absolute blast and would recommend this tour to anyone visiting Puerto Rico. It's a once-in-a-lifetime experience and something we'll never forget!
🌟🌟🌟🌟🌟 Highly recommended! 🛶✨💙
Response from Host, Oct 2026
Thank you, Wilma! We’re thrilled the glowing bay and our guides made this a highlight of your trip. We appreciate your thoughtful recommendation!
I did the night tour and it was the highlight of my trip! We kayaked for three miles through beautiful mangrove swamps before we entered Fajardo Bio Bay for the real spectacle. Photos do not do justice to how incredible the bioluminescent plankton look in person! They truly are the stars of the ocean. This is a must-do if you are in Puerto Rico!
Response from Host, Oct 2026
Thank you, Vasilios! We’re thrilled the mangroves and glowing bay made this a highlight of your trip!
This was an amazing experience we will remember for a long time. Paddling through the mangroves in the dark was just magical, as was the bioluminescence- and we were there on a “bad” night! We absolutely loved our guide Miguel! Ineliz, Francisco, and Brian were a great crew. Definitely recommend!
Do note that you get in the water waist deep to get in your kayak, so when they say you will get wet they mean it! I also think this is maybe not the tour for newbie kayakers - it’s a fairly narrow canal with little visibility and a current. If you have kayaked at all it’s not overly difficult, and absolutely worth it.
Response from Host, Oct 2026
Thank you, Kelly! We’re glad Miguel and the crew made the mangroves and glow memorable. We appreciate your thoughtful feedback about the paddle!
Unique experience. The guides were wonderful and knowledgeable. They ensured that we could see the illumination even in the rain and other undesirable conditions. Will definitely do this again.
Response from Host, Oct 2026
Thank you, Candi! We’re glad our guides helped you enjoy the glow despite the rain. We’d love to have you back!
This whole experience was a waste of time and money. The organization was poor. The bioluminescence could only be seen for a few moments under a tarp. The water was gross and ruined our clothes.
At one point, they had us slather bug repellent all over our bodies. There was an older man that was pumping the bottle, then covering his groin and up under his shorts and underwear with the repellent, then proceeding to touch the bottles and get more repellent. Slathering himself inappropriately.
The location the vendor sent out was about a 1/4 of a mile away from where the meetup point was, and we nearly missed the tour to begin with - in hindsight I wish we had.
They allowed children to pilot kayaks alone, which lead to the kids crashing into others and crossing paths with the other kayakers.
Instead of providing a lanyard or dry bag, phones were taken and you could not take pictures.
The bathrooms used for multiple companies and had 10+ people in line at all times.
Response from Host, Oct 2026
We’re sorry, Nicole. The meeting directions, organization, and limited glow viewing fell short of your expectations. Your concerns about the facilities and experience deserve attention. Please contact our team with your booking details so we can review them.
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!
Response from Host, Oct 2026
Thank you, Ryan! We’re happy our team helped you feel at ease and enjoy your first nighttime paddle. We’d love to have you back!
Very beautiful kayak at night through the mangroves out to the bio-bay. Loved seeing the sparkling plankton and so many stars. Friendly guides.
Response from Host, Oct 2026
Thank you, Laura! We’re glad you enjoyed the mangroves, sparkling water, and stars with our friendly guides!
Kayaking through the mangroves and into the open lagoon was so beautiful. The bioluminescence looked like fireflies in the water. It was incredible!
Response from Host, Oct 2026
Thank you, Corinne! We’re happy the mangroves and sparkling lagoon made your experience incredible!
The guides give good instructions at the beginning. There is a bathroom facility available and parking onsite. Can be physically demanding if current is strong. They have eco friendly bug spray, provide water and snacks for afterwards. It’s very dark but you can see the red lights of the kayaks in front of you. Amazing bioluminescence in the dark canals, very exciting and it was right after it rained.
Response from Host, Feb 2026
Thank you for the fantastic review! 🌌🚣♀️
We’re so glad you enjoyed the adventure and found the instructions helpful — our team works hard to make sure everyone feels prepared and safe before heading out. It’s great to hear the bioluminescence was amazing that night, especially after the rain when conditions can really make it sparkle! ✨
We also appreciate you mentioning the physical aspect of the paddle, as currents can definitely add to the challenge. Thanks for joining us and for highlighting those helpful details for future guests. Hope to see you back on the water again soon! 🌿🌊
Absolutely worth it no matter the time of year or weather!!! Thank you to our guides: Bryan, Daniel, Laurie, and Miguel!!!
Response from Host, Feb 2026
Thank you for the amazing review! 🌌✨
We’re thrilled you had a great experience and felt it was worth it in any season — that truly means a lot! Bryan, Daniel, Laurie, and Miguel will be so happy to hear your shoutout; they love making each tour fun, safe, and memorable.
We appreciate you joining us and hope to paddle with you again on your next visit! 🚣♂️🌿
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