Melissa S
Jun 10, 2026
Tour guide and equipment were the best for sure!!!! Kayaking was fun and beautiful IF you are planning on seeing more than static-energy looking glitter sparkles then you will be disappointed. It’s neat yes but pictures online show more colors
Patti G
Jul 4, 2026
I highly recommend PR BioBay Tours. We booked a tour during the full moon, and I appreciate that the company set our expectation of this being a Full Moon Adventure, no guarantee of bioluminescence. The thorough pre-kayaking safety briefing had us feeling safe and prepared. Entering the bay was magical in the twilight. Once inside the lagoon, we enjoyed an educational briefing on the science behind bioluminescence and learned about the species of fish and wildlife of the area. What a lovely evening! I followed recommendations of wearing long sleeves and pants; the mosquitos are no joke. Spray your neck and head as well. Also, realize that sargassum is thick on the shore in the ocean and in the mangroves on the way to and from the lagoon. It makes paddling a true adventure. lol
Kyle C
Jun 30, 2026
We loved the guided trip. The guides were very helpful especially when my young son was tired and upset. They helped him to calm down and to focus on the beautiful nature all around us. Thank you!
Michael Sierra
Jun 27, 2026
This was one of the highlights of our trip to Puerto Rico! The bioluminescent bay kayaking tour was an unforgettable experience. Seeing the water glow around our paddles was absolutely magical and seeing all the creatures at night was second to none.What really made the experience exceptional was the staff. They were incredibly friendly, knowledgeable, and funny. They were very accommodating especially for someone such as myself who is handicap (missing 1 arm and 1 leg). Their enthusiasm and positive attitude made the trip even more enjoyable.We would absolutely do it again!
Reinaldo “Rey” Casillas
Jun 21, 2026
This location is exceptionally pleasant, offering a wonderful atmosphere ideal for recreation and relaxation, showcasing the Earth's beauty.
Zach Boone
Jun 15, 2026
My wife and I did an 8pm guided kayak tour to laguna grande in mid June. This was our first experience with Caribbean sargassum. Be forewarned that the smell is intense. I'm actually thankful for this experience for raising my awareness of what a huge problem this is (Google it). The tour operator was well equipped and professional. The kayaking requires some arm strength and I enjoyed getting some exercise. Make sure that your kayak buddy is someone that you are capable of communicating with 😜. We lucked out and had a beautiful starry night (no moonlight). The y was totally mesmerizing and far exceeded my expectations. I did a night scuba dive in Utila years ago which was my first experience with bioluminescence. I was prepared to accept just the kayaking and clear night sky as a win given other tourist comments that the bioluminescence is hit or miss. Be prepared for Sargassum depending on when you visit.
Jennifer G
Jun 13, 2026
Had an amazing adventure! Definitely recommend, even if it’s windy! :)
Javier W
Jun 13, 2026
It was an amazing experience and the team is great! they explained everything very meticulously!
Anastasia Cooper
Jun 10, 2026
The bioluminescence bay was great! The guides were very helpful and informative too. I accidentally booked on the wrong day and they helped me reschedule.
Melissa S
Jun 10, 2026
Tour guide and equipment were the best for sure!!!! Kayaking was fun and beautiful IF you are planning on seeing more than static-energy looking glitter sparkles then you will be disappointed. It’s neat yes but pictures online show more colors
Patti G
Jul 4, 2026
I highly recommend PR BioBay Tours. We booked a tour during the full moon, and I appreciate that the company set our expectation of this being a Full Moon Adventure, no guarantee of bioluminescence. The thorough pre-kayaking safety briefing had us feeling safe and prepared. Entering the bay was magical in the twilight. Once inside the lagoon, we enjoyed an educational briefing on the science behind bioluminescence and learned about the species of fish and wildlife of the area. What a lovely evening! I followed recommendations of wearing long sleeves and pants; the mosquitos are no joke. Spray your neck and head as well. Also, realize that sargassum is thick on the shore in the ocean and in the mangroves on the way to and from the lagoon. It makes paddling a true adventure. lol
Join us for an unforgettable night kayaking experience into the Bioluminescent Bay of Laguna Grande, located in Fajardo, Puerto Rico. Paddle through waters filled with bioluminescent organisms that light up under the right conditions, creating a magical glow around your kayak. This adventure offers a unique opportunity to connect with nature and witness one of the world's rarest natural phenomena. Our experienced guides will lead you through the bay, providing insights into the fascinating ecosystem and the science behind the bioluminescence. Whether you're a seasoned kayaker or a beginner, this tour is designed to be enjoyable for all skill levels. Feel the tranquility of the night as you glide through the water, surrounded by the beauty of the stars and the glowing lagoon. Don't miss out on this once-in-a-lifetime experience. Book your Bioluminescent Bay Night Kayak Adventure today and create memories that will last a lifetime. Perfect for families, couples, and solo travelers looking to explore the natural wonders of Puerto Rico.
Our Full Moon Kayak Adventure is the perfect nature adventure under a full moon, and if your stay in Puerto Rico happens to fall during the full moon stage you don’t have to miss out on our Night Kayaking Tours! Fajardo’s Bioluminescent Bay is best seen on the darkest nights of the lunar cycle, and if your stay in Puerto Rico happens to fall during the full moon stage you don’t have to miss out on our “Puerto Rico Night Kayaking Tour.” This tour was developed as an alternative to the Bioluminescent Bay Kayak Adventure during the full moon cycle as the reflection of the moonlight on the surface of the lagoon makes it difficult to see the bioluminescent organism. But that same moonlight exposes mangrove forests, eight ecosystems, bird life, second oldest lighthouse in Puerto Rico, iguanas and much more of natures secrets that are normally overlooked on the darkest nights! Whether you're a nature enthusiast or simply seeking a memorable adventure, the Full Moon Kayak Adventure promises an unforgettable night on the water. Book your Puerto Rico night kayaking tour today and immerse yourself in the natural wonders of Puerto Rico. The activity will start with guest check in, storing of personal items, botanical insect repellent. At this point our tour will start, your group will be led across a small fisherman’s harbor to the entrance of Las Cabezas de San Juan Reserve here they will enter a mystical channel that leads to a peaceful place where the mangroves create natural tunnels and the sights and sounds of wildlife surround you! After a 25 to 30 minute paddle through the channel, based on traffic and tidal currents your lead guide will be stopping once in the lagoon to give commentary on the following points of interest: • Mangrove forest and the different species. • Bird life that inhabits the area. • Aquatic marine life that uses the lagoon as an estuary. • Information on the Bioluminescence organism. • History on the lighthouse. • Insight on seven of eight ecosystems found in the area. At this point we will enter the lagoon called Laguna Grande, (large Lagoon) here we will paddle along the edge of the mangrove forest as we watch the stroke of each paddle light up a bioluminescent blue-green/white-green and encounter fish that look like shooting stars as they swim through the thick concentration of “Pyrodinium Bahamense” a species of “Dinoflagellate”, the bioluminescence is best seen on the darkest nights, so during the full moon phases the bioluminescence is less visible or not visible at all. This will lead the group to our break point where beautiful views of the Rainforest and the lighthouse of Fajardo accompany interpretation of the natural area and good conversations. Now we are about 1 hour into our tour, interpretation of the natural area has ended and our group is now in route to “Bird Island” to view many birds that roust here at night! Once quietly rounding the small island we will start our return to the departure site, this will take about 30 to 45 minutes. Tour duration is 1:45 – 2:00 hours in water with 45 minutes of pre-ride (kayak – 101) safety training, life vest sizing and fifteen minutes once back on shore for snacks, cold water and closing comments for a total of 3 hours.
Join us for a morning adventure into the El Yunque National Forest via Angelito Trail. This nature walk is perfect for all ages, six and above, accompanied by an adult and offers a chance to learn about the diverse species that inhabit this lush environment, local history and culture. Conclude your journey with a refreshing swim in the Las Damas natural pool, weather permitting.
Experience the magic of El Yunque Rainforest as the sun sets on a guided night nature walk. This tour offers a unique opportunity to explore both day and night sides of the El Yunque National Rainforest's its flora and fauna in the enchanting twilight. Our knowledgeable guides will lead you through this natural wonder, providing insights into the ecosystem and its inhabitants.
Introducing our stunning luxury ocean view penthouse with 3 bedrooms, 2 bathrooms, and an incredible large rooftop, offering breathtaking views of the East side of our beautiful island. Our hidden private complex is the perfect tranquil retreat, near beaches and a variety of restaurant options. Whether you’re a family, couple, or solo adventurer, our penthouse is the perfect place to unwind and disconnect. We can’t get enough of the magical sunrise views from our window-come see for yourself.
Discover the bioluminescent waters of Laguna Grande with the original kayak tour outfitter operating since 1997. At Puerto Rico Bio Bay Tours, we have been bringing guests into this one-of-a-kind ecosystem for decades and are proud to share more than 29 years of experience and knowledge with each of our guests!
We offer the smallest groups in the industry, the best guide to guest ratios, high-quality equipment, annual Coast Guard safety inspections, one-of-a-kind navigation lighting system and a full two hours in water timeline that allows you to relax and see all of Laguna Grande and its glowing waters! We are truly driven to make sure that each guest not only sees the glowing waters of Puerto Rico’s bioluminescent bay, but learns about its inner workings while never losing sight of our promise to deliver a Fun, Safe, Memorable, Experience Every Time.
Come join us and discover the natural wonders of Laguna Grande’s glowing waters with our award-winning guide team. We offer bioluminescent bay kayak tours during the darkest nights and full moon night kayak tours during the full moon stage, no matter the lunar cycle during your visit, let our knowledgeable, passionate guides share Puerto Rico’s history, culture, flora and fauna with you during this one of a kind Puerto Rico night kayaking experience!
Discover Our Unique Bio Bay Kayak Tours
You may be wondering what makes our tours so special. We have decades of experience bringing guests into Laguna Grande to see and learn about its annual bioluminescence and the special environment that allows the glowing waters to happen year round. As the Original Outfitter operating since 1997, our guides are driven to share their local knowledge and passion via interpretation and education of Puerto Rico’s history, culture, flora and fauna with each of our guests.
We pack in high quality equipment, setup our tour site nightly, receive our guests with service and safety as our top priority, guide them into and throughout Laguna Grande via fully guided night kayaking tours, striving to deliver our promise of a fun, safe, memorable, experience every time. Then, at the end of every night, packing out all we packed in leaving no trace of our operation on this beautiful ecosystem. Our tours are available for all skill levels from six years and older, so you can bring the entire family along on this unforgettable adventure.
What could be more exciting than taking the whole family on a kayak adventure under the night sky in Puerto Rico? Our Bioluminescent Bay trips into the waters of Laguna Grande are an experience you'll...
What could be more exciting than taking the whole family on a kayak adventure under the night sky in Puerto Rico? Our Bioluminescent Bay trips into the waters of Laguna Grande are an experience you'll never forget, because it is one of the few places in the world where you can experience the natural phenomenon of bioluminescence. Leave it to our experienced guides to ensure everyone in your small group has a blast!
Children six years and older, accompanied by an adult are welcome on our tours located in the town of Fajardo, on the main island of Puerto Rico. You don't have to worry about finding someone to watch...
Children six years and older, accompanied by an adult are welcome on our tours located in the town of Fajardo, on the main island of Puerto Rico. You don't have to worry about finding someone to watch your little one as you paddle out under a star filled sky. They will love seeing the water light up mysteriously as you paddle into and around Laguna Grande our bioluminescent lagoon. If your visit to Puerto Rico happens during a full moon phase, join us under the moonlight and see the things that would normally be missed on the darkest nights, even though the glowing waters are best seen during the darkest nights the experience can still be magical as the moon light dances on the water.
How often can you say you've seen something like bioluminescence? There are only five annual bio bays in the world and Puerto Rico has three of the five, two bays and one lagoon, so guests truly have ...
How often can you say you've seen something like bioluminescence? There are only five annual bio bays in the world and Puerto Rico has three of the five, two bays and one lagoon, so guests truly have a once-in-a-lifetime experience when taking part in our kayak adventure tours during an island vacation. Discover the magical qualities of these illuminating organisms as you glide through the peaceful waters after sunset.
Puerto Rico, especially San Juan, is full of vibrant neighborhoods and rich cultures that bring visitors from around the globe. There's so much more to experience here than one of the brightest bioluminescent bays in the world. There is a plethora of history to take in when visiting Puerto Rico, along with unforgettable beach destinations and countless eateries to sample the incredible flavors that make up the cuisines in Puerto Rico.
Whether you're looking for a fun-filled family vacation spot for an island getaway or a nature lover looking to experience one of the great wonders of nature, there's always something exciting to discover here in Puerto Rico. Once you've explored the popular tourist attractions and are looking to escape the hustle and bustle of the city, a short drive from the San Juan Metro Area will take you to the charming town of Fajardo, where you can experience true magic.
The bio bay is an experience you will never forget! The glowing waters, lit up by bioluminescent creatures, is like stepping into a dream. This adventure is not only stunning but also provides a unique opportunity to connect with nature in a way that few places on Earth can. In a nutshell, bio bay is a must see that will stay with you forever!
Most frequent questions and answers
July 28, 2025
Your rainforest adventure awaits! If you're visiting San Juan for a vacation, you simply cannot skip a visit to El Yunque National Forest. As northeas...
Read More: 5 Exciting Things To Do In El Yunque National Forest - Experience Nature And Thrills!
July 28, 2025
San Juan is the ultimate gateway to natural beauty! The best day trips involve exploring rainforest terrain and rare glowing bays. There's no need to...
Read More: 7 Amazing Day Trips From San Juan - Experience The Best Of Puerto Rico!
July 28, 2025
Fajardo, Puerto Rico, is the perfect place to unwind in the tranquility of the wild. Of course, this retreat, just an hour from San Juan, also offers...
Read More: 7 Fun Things To Do In Fajardo, Puerto Rico - Plan Your Perfect Trip!
