Bio Bay Night Kayak Tour in Fajardo
Description
Experience a guided nighttime kayaking adventure through the beautiful mangrove channels of Las Croabas in Fajardo, Puerto Rico. Along the way, our knowledgeable guides share fascinating information about the mangrove ecosystem, local wildlife, marine life, and the history of the area’s unique lagoon. Our destination is the world-famous Bioluminescent Bay, where guests have the opportunity to observe one of nature’s most extraordinary phenomena. Because bioluminescence is a natural occurrence, its visibility varies nightly and is influenced by environmental conditions such as weather, moonlight, and seaweed. While the glow cannot be guaranteed, every tour offers a peaceful paddle beneath the stars through one of Puerto Rico’s most remarkable natural environments. Whether the bioluminescence is vibrant or subtle, you’ll enjoy an unforgettable evening exploring the mangroves and learning about one of the island’s most unique ecosystems.
Tour Options
Itinerary
After Check-in guides gather group for a brief session covering basic kayaking, rules of the road, and the importance of keeping a minimum disturbance of the environment of the bioluminescent lagoon. Then we launch our kayaks and head for a hidden opening in the mangroves in northern end of the beach. Upon entering the mangroves, we follow a channel for a mile leading to Laguna Grande. Once we enter the laguna your guides gather group for an informative talk about: This unique ecosystem, the flora, fauna, and sea life that inhabits the lagoon, and historical notes. Our bay is very delicate as it depends on the ecosystem surrounding it. Due to climate changes and other factors the bioluminescent bay can reduce its fluorescent lights . This means that the glow is not guaranteed . This all depends on natural or human causes that can affect the organisms. Our company is not responsible for these changes as we do our best to provide a unique experience for all who visit the island.
Highlights
What's included
Traveller Ratings
Important Information
- Wheelchair accessible
- Infants and small children can ride in a pram or stroller
- Service animals allowed
- Not recommended for travelers with spinal injuries
- Not recommended for pregnant travelers
- Not recommended for travelers with poor cardiovascular health
- Suitable for all physical fitness levels
- Weight limit - Max 250lbs per person
- No children younger than 5 yrs
Reviews(59)
The guides were great. The excursion was very exciting. Only we did not see any luminance in the bay.
I had the opportunity to enjoy the Bioluminescence Kayak Excursion in Laguna Grande, Fajardo, on Wednesday, July 22, 2026, together with my family and I can say that it was a simply unforgettable experience. From the beginning of the excursion, the guides Zion and Joel demonstrated exceptional professionalism. At all times they were attentive to the safety of the group, offering clear instructions and providing help when it was necessary, which made us all feel safe and fully enjoy the adventure. In addition to guiding us through the impressive channels surrounded by the mangrove forest of the Fajardo coast, they shared very interesting information about the Laguna Grande ecosystem, the importance of the mangroves, the fauna, the flora, and the natural phenomenon of bioluminescence. Their knowledge and enthusiasm made the tour much more than a simple kayak ride; it was an educational and enriching experience. We were even able to observe a small monkey that was watching us in a majestic tree. Paddling under the stars while the water glowed with bioluminescence is something difficult to describe with words. It is one of those experiences that you have to live at least once in your life. I would definitely repeat this adventure without thinking twice. I recommend this excursion to families, couples, and groups of friends who wish to enjoy nature in a unique and safe way. Thank you very much to Zion and Joel for making this night such a special and unforgettable experience! Five stars, totally deserved! ⭐⭐⭐⭐⭐
¡Muchísimas gracias Juan por la gran reseña y por recomendarnos! Nos llena de alegría saber que disfrutaron de una experiencia tan especial junto a su familia. Nos enorgullece saber que Zion y Joel hicieron que su aventura fuera una inolvidable. Compartiremos sus amables palabras con ellos, ya que reconocimientos como el suyo significan muchísimo para todo nuestro equipo. Gracias por elegir Eco Adventures Puerto Rico y por destacar la belleza y la importancia de nuestro ecosistema y los manglares. Esperamos tener el placer de recibirlos nuevamente muy pronto para otra noche mágica en la Laguna Grande. ¡Hasta la próxima y gracias por confiar en nosotros!
We did not see any bioluminescence, which although disappointing, was out of the companies control. We did have a really nice evening kayak through the mangrove channels and watched a lovely sunset. On the way back through the mangroves, it was almost completely dark and we got a near light show from the click beetles (similar to fireflies) illuminating the mangrove canopy. Our guides were also great! John, Zion, and Leo answered all our questions and made our trip really fun! I would recommend doing the 6:30pm tour, as you'll get a view of the mangrove channel while there is still sunlight as well as be able to watch the sunset before the bioluminescence becomes (hopefully) visible.
Thank you so much for taking the time to share your experience! While we’re sorry the bioluminescence wasn’t visible during your visit, we truly appreciate your understanding that it’s a natural phenomenon beyond our control. We’re so glad you enjoyed the mangrove adventure, the sunset, and the amazing display from the click beetles. We’ll be sure to pass your kind words along to John, Zion, and Leo—they’ll be thrilled to hear they helped make your evening memorable. We hope to welcome you back for another paddle in the future!
Excellent tour. We enjoyed kayaking and watching the sunset. The guides were kind and informative and knowledgeable.
Hi Sarika! Thank you so much for joining us and for taking the time to share your experience. We hope you visit again soon!
perhaps my expectations were too high. A picture shows a really cool bio illumination but we had no where near that experience. We were doomed from the start as our group included 2 dozen teens that were screaming and crashing the kayaks. Once in the lagoon, we did not see any illumination. So very disappointing. The guides did a good job but they rope all the kayaks together so it is beyond difficult to see the bio illumination. I don't recommend.
Hi Paul, Thank you for taking the time to share your honest feedback — we truly appreciate it. We’re sorry to hear that the experience didn’t meet your expectations. Bioluminescence is a natural phenomenon, and while some nights can be incredibly bright, other nights are much more subtle depending on factors like recent rainfall, moonlight, water conditions, and microscopic organism levels. We always try to communicate that glow intensity can vary , but we understand how it can feel disappointing when it’s not as vibrant. Regarding the group dynamic, we do our best to manage all participants and keep the experience enjoyable and safe for everyone. When we temporarily rope kayaks together, it’s primarily for safety and group control in certain areas, especially when conditions or group size require it. That said, we understand how that can make viewing more challenging, and we appreciate you pointing that out. Feedback like yours helps us continue improving how we manage different group situations. We’re glad to hear our guides did a good job — we’ll be sure to pass that along to them. Thank you again for being candid. We truly value your perspective.
It was amazing. Tour guides were so kind, knowledgeable and funny. They made it a great experience. Would recommend
Hi Kayli! Thank you so much for taking the time to share your review. We truly appreciate you giving us the opportunityand we’re so happy to hear that your experience turned out to be great.
We had a great night time kayak tour through the mangroves. The bioluminescent bay was not as sparkly as we expected but our guides were very knowledgeable and personable. It was a very fun experience that I would highly recommend.
Hi Lorri, Thank you so much for joining us and for taking the time to leave such a great review! We truly appreciate your kind words and we’re so happy to hear you had a fun experience with our team. We also really appreciate your transparency regarding the bioluminescence. As you mentioned, Mother Nature can be unpredictable and the glow is not always at its highest. Thank you again for your recommendation, and we hope to welcome you back for another adventure soon! Warm regards, Eco Adventures Puerto Rico
Grab a pouch for your phone! You will get wet. Great Sunset photos. Guides were fabulous. Felt very safe in the Mangrove forest after dark. The Bioluminescent was great.
Hello Dennis, Thank you so much for your amazing review! We truly appreciate it. Also, thank you for sharing that great tip about bringing a waterproof pouch for phones — that is excellent advice and very helpful for future guests. Yes, you will definitely get wet, and we always want everyone to be prepared so they can fully enjoy the experience! We’re so happy to hear you felt safe with our guides and we’re thrilled that the bioluminescence was great during your tour! Thank you again for choosing Eco Adventures. We hope to see you again soon! Warm regards, Eco Adventures Team
Frankly disappointed, I won't advise! Choose instead the kayak trip only, it will be just as well for 3x cheaper! Yes it was the disappointment because it was just a kayak trip: arrived for sunset the break time was on the wrong side (the monitor had the right view, we were all strapped in front of him) so advice take pictures of the beautiful sunset when you paddle, do not wait to be strapped... We didn’t see anything luminescent (a third of the moon had to do it) but that’s the risk we understand. We could have waited a little longer because... ...the activity lasted only 1h30 and not 2h... When I say 1h30 it is once their snack is collected and goodbye said (1 mini packet of chips + 1 bottle of water per person) Honestly it’s very expensive the outing even if the staff was very welcoming (you surprise me given the price per person)
Bonjour, Merci d’avoir participé à notre excursion et d’avoir pris le temps de partager votre expérience. Nous sommes désolés d’apprendre que la visite n’a pas répondu à vos attentes. Nous faisons toujours de notre mieux pour offrir une expérience mémorable, et nous apprécions sincèrement vos commentaires. La bioluminescence étant un phénomène naturel, son intensité peut varier d’une soirée à l’autre selon plusieurs facteurs tels que la lumière de la lune, la météo et les conditions de l’eau. C’est pourquoi nous indiquons clairement sur notre site internet et dans les informations de réservation que le phénomène lumineux ne peut pas être garanti. Nous souhaitons également préciser que l’accès à la baie bioluminescente est réglementé et qu’il est uniquement permis d’y entrer dans le cadre d’une excursion guidée en kayak autorisée par le Département des Ressources Naturelles et Environnementales. Il n’existe donc pas d’option « kayak en autonomie » dans cette zone. Concernant la durée, notre excursion est annoncée comme durant environ 1h30 à 1h45, ce qui correspond au temps mentionné dans votre avis. De plus, les collations et l’eau offertes ne sont pas incluses dans le forfait, mais constituent un geste de courtoisie que nous offrons gratuitement à nos clients. Nous sommes néanmoins heureux d’apprendre que vous avez trouvé notre équipe accueillante. Notre personnel est fier d’offrir un excellent service à chaque visiteur. Merci encore pour votre visite, et nous vous souhaitons une excellente continuation dans vos voyages. Cordialement, L’équipe Eco Adventures
We loved it. It was fun, beautiful, mysterious and very informative. The guides were extremely nice. And Chis gave a wonderful talk about the creatures that glow and the stars. Highly recommended.
Thank you so much for the wonderful review and for joining us on the water! We’re thrilled to hear you found the experience fun, beautiful, and mysterious — that’s exactly the magic we hope guests feel out there. Our guides will be so happy to hear your kind words, and we’ll be sure to pass along your special mention to Cris. He truly loves sharing his knowledge about the bioluminescent creatures and the stars above. Thank you again for the recommendation. It means a great deal to our team, and we hope to welcome you back for another glowing adventure in the future. Warm regards, Eco Adventures ✨🛶
