
Come see, hear and feel the adventure as you explore the captivating glowing water of Laguna Grande.




Glowing Bay Adventure
The Highlights TOUR
Of your Adventure
This is the one adventure you should not miss while visiting Puerto Rico. Paddle through the mystical mangrove channels that lead to "Laguna Grande." You will feel as if you are on another planet as the water comes to life in a magnificent glowing spectacle that must be seen to be believed!

The Glowing Bay Adventure Includes:

Basic Equipment
Kayak and US Coast Guard-approved life jackets.

Expert Guides
Experienced eco-interpretive guide with CPR and First Aid certification.

Basic Training Lessons
Training and safety instructions prior to the tour.

Illumination
Low-intensity nighttime navigation lights.

Safety
First aid and kayak towing equipment.


Skill Level: Beginner

Duration: 1.5 Hours

Minimum Age: 6 Years +

Glowing Bay Adventure
GalleryPHOTOS
Island Kayaking Adventurers








An Unbelievable Experience
That you will never forget!
Glowing Bay Adventure
Questions? FAQ
The answers you need
Yes, most of our guests have little or no experience. We provide all the necessary training and instruction for an enjoyable and safe experience. We also paddle in double-seat kayaks (which are exceptionally stable).
Fitness Requirements. You will paddle moderately for two miles, one mile in and one out. As a result, you should be reasonably fit and agile (with upper body strength) to get in and out of the kayak while keeping your back at a 90-degree angle.
Are we able to swim in the lagoon?
No, we are not allowed to swim to preserve the ecosystem. Things we use daily can affect the microorganisms (hair gel, deodorant, lotions, perfume, insect repellent with DEET, etc.).
Is it safe for kids?
Yes, this is a great activity to immerse kids in nature. The minimum age to do the adventure is six years old.
Can I take pictures?
You can bring water cameras; however, photos of the Bioluminescence need particular film and equipment. If you value your digital camera, leave it in a safe place. Remember, this is an adventure for your memory.
Should I bring water and snacks?
After the adventure, we provide water and snacks (chips and granola bars).
Weight capacity?
The maximum weight limit is 225 lbs (102kg) per person.
You're going to get wet! It is recommended to wear comfortable, quick-drying clothing, such as swimsuits, and to bring a change of clothes for after the tour. Water shoes or sandals that you don't mind getting wet are required.
Yes, reservations are required to guarantee a seat on the tour. When you book online or via phone, this is your reservation.
Visa or Master Card are accepted when making a reservation over the phone or online. When you enter your credit card information, you are paying for your tour and reserving your seat for your chosen date. Without payment, we cannot hold or reserve any spaces.
Yes. In the event that you must cancel your reservation, we have a 24-hour cancellation policy for all our adventures. You have 24 hours before check-in time to change the date or cancel for a full refund. All cancellations must be made by phone or email directly to Island Kayaking Adventure. Guests that are no-shows or late arrivals will receive the full charge. Same-day reservations are considered Final Sales.
Groups of 10 or more guests must cancel one week in advance for a full refund. Cancellations of less than a week, no-shows, and late arrivals will be fully charged.
Weather cancellations?
Marine activities are subject to weather conditions; if we are forced to cancel the adventure due to the weather conditions guest will receive a full refund. We will contact you to inform you about the cancellation. If you decide not to attend without our cancellation notice, you will be charged if the adventure goes out.
We equip each kayak with low-intensity lights. This will assist you in following the group through the canal. All our guides are required to carry additional emergency lights.
No, knowing how to swim is not a requirement for the tour. However, it's important to note that swimming is not permitted at Laguna Grande, and all visitors must wear a life jacket at all times during the tour. Also, the water canal we paddle through is mainly 3 to 5 feet deep.
Glowing Bay Adventure
ExperiencesREVIEWS
What our adventurers say
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Bio bay was incredible Very busy location but all companies are there for the bio bay tours. The kayaking was not easy, but well worth getting to the bay to see it
Cathy C6/21/2015Awesome & Fun!!! Thalia & Kenny - March 17th 2022 @ 6:45pm. My family was so glad that we chose island kayaking adventure. Actually Natalie @ Brasas y Cultura gave us your info to schedule this trip. The guides were all excellent &... read moreThalia & Kenny - March 17th 2022 @ 6:45pm. My family was so glad that we chose island kayaking adventure. Actually Natalie @ Brasas y Cultura gave us your info to schedule this trip. The guides were all excellent & remained professional & kind, especially to the inexperienced paddlers. It was a pretty bright moon, the guides did everything to make sure we all saw the glow. The guide Thalia was very personable. She was so nice to my 2 daughters and me & my husband. Wish we had met Kenny the guide that night. Kayaking through the mangroves to the lagoon was an amazing & a beautiful experience. You must book this trip! read less
valeriefY6926DV3/26/2022 -
It's unique! Bioluminescent kayak tour! This is a lot of fun and an experience you'll never forget. Nothing else is like it. Wear insect repellent. Make reservations ahead of time if at all possible. It's educational and adventurous! Don't leave... read moreThis is a lot of fun and an experience you'll never forget. Nothing else is like it. Wear insect repellent. Make reservations ahead of time if at all possible. It's educational and adventurous! Don't leave Puerto Rico without it! read less
Cathy13196/27/2013Fantastic and interesting adventure This company was awesome. Kenny was fantastic... He kept me entertained with fantastic information and conversation and was super patient with the group in front of us.
Rachelle W6/17/2023First Time Kayaking and it was AMAZING Booked the Bio-luminescence tour while our cruise ship was in port. The guides were very helpful, and the plankton was awe inspiring. My wife was less impressed as a first-timer and not as adventurous as I. Wear swim clothes, and... read moreBooked the Bio-luminescence tour while our cruise ship was in port. The guides were very helpful, and the plankton was awe inspiring. My wife was less impressed as a first-timer and not as adventurous as I. Wear swim clothes, and use the offered insect repellent. In our group a few kayaks had to be towed in one direction or another, and I have not laughed so much as I did while we tried to figure out how to work together and not run into mangroves. Will take this tour again, while my wife does another activity... read less
228jeannines3/10/2020 -
Fun and Friendly Guides This was an enjoyable experience; the guides were fantastic at accommodating different skill levels and keeping things organized. All the guides were knowledgeable and very friendly, talking to the area, stars and bioluminescence. We went when the moon was nearly... read moreThis was an enjoyable experience; the guides were fantastic at accommodating different skill levels and keeping things organized. All the guides were knowledgeable and very friendly, talking to the area, stars and bioluminescence. We went when the moon was nearly full, so the bioluminescence wasn’t great, but the guides worked hard to ensure we could still see it and enjoy it. read less
Felixhelt3/20/2022Paddling into a Magic World Kayaking at night was a new experience and a lot of work when against the current, but our guides, Kenny, Gary, Abel, Celix, and Pedro were all incredibly helpful, engaging, and informative. Getting to see the “glitter water” was a... read moreKayaking at night was a new experience and a lot of work when against the current, but our guides, Kenny, Gary, Abel, Celix, and Pedro were all incredibly helpful, engaging, and informative. Getting to see the “glitter water” was a magical time! read less
Rose R4/11/2023Informative, family oriented and just simply a very cool adventure. Cool experience at Fajardo. Las Cabezas de San Juan is a beautiful place and they (Island Kayaking) helped us experienced it further. The guides instructed us and our little girl on the safety and procedures of the tour as well... read moreCool experience at Fajardo. Las Cabezas de San Juan is a beautiful place and they (Island Kayaking) helped us experienced it further. The guides instructed us and our little girl on the safety and procedures of the tour as well as how to better use de kayak and oars – pretty important for the 7-year-old with us. Once the tour started there were four guides with the group (about 16 persons in the group) and they were always close by making sure nobody got stuck in the mangroves ?? ??♂️. Once we arrived at the Laguna Grande we could roam the area close by. Then they gathered everybody as the night finally came around to explain how bioluminescence works and to experience it first hand. It was amazing and beautiful!.
We stayed there for about 30 minutes and started to head, which was an adventure in itself. Traveling the channels of mangroves at night it is funny and cool. There are light in the kayaks and the guides have lights on them too but it's pretty dark nevertheless so it was an engaging experience to hear the animals at night, see the starry sky and just be surrounded by nature – and some "light" crashing onto other kayakers.
Soon after that, came the end of the adventure, everybody happy, our girl was very excited about what she learned and experienced. I fully recommend this trip to anyone living in Puerto Rico or visiting. It's a must! read lessgabo_deleon7/02/2019 -
Island Kayaking Adventure Excellent time. Miguel was our group leader. He was straight forward and funny. Very personable. Please bring a change of clothes as you will get wet. I recommend that you give yourself some time to get to the meeting point.... read moreExcellent time. Miguel was our group leader. He was straight forward and funny. Very personable. Please bring a change of clothes as you will get wet. I recommend that you give yourself some time to get to the meeting point. Especially if your going on the weekend. The beach where you will meet was very crowded and hard to find parking. As for storing any valuables, I recommend handing them over to the tour guides; they will lock it in the van and a company representative will stay with the van. read less
Irishcav1045/19/2014Bucket List item With a limited number of bio luminescent bays in the world this is a bucket list activity. The staff and equipment were excellent. It is very dark and you really need to know how to kayak at least a... read moreWith a limited number of bio luminescent bays in the world this is a bucket list activity. The staff and equipment were excellent. It is very dark and you really need to know how to kayak at least a "little". I felt sorry for the guides who had to deal with novices who slowed the whole group down. My only complaint is that the whole mangrove and bay is TOO crowded because local authorities have licensed too many tour groups. You have to stay on your toes to stat with your guide and group and not get confused by other kayaks in the channel with our tour groups doing the same thing. Kayaking at night in the mangroves and bay is cool but it is crowded. read less
Ellen H3/16/2017MAGICAL EXPERIENCE! Excellent job done by the tour guys👏👏👏
They took care of us and on the top of everythi g, they were helping others left behind by other companies. They adviced us not to go too fast or too slow. I saw... read moreExcellent job done by the tour guys👏👏👏
They took care of us and on the top of everythi g, they were helping others left behind by other companies. They adviced us not to go too fast or too slow. I saw several accidents of other Kayak colapsing, crashing and people in the water. There were not like a traffic regulation lol. We made it and we went to the lake the other companies were mostly gone. So we enjoyed the clear night, learn about the stars and history! About the area and our tour guy had all the answers my son was impressed with the green laser light. He loved the experience too and the cover to make it dark and be able to see the bioluminiscencia was very smart! We hope that everybody take care of this magical place!😊🙏❤ read lesssobreshop2/18/2021 -
Amazing night tour We had a great time with Island Kayaking Adventure on our visit to Luquillo. The night tour was amazing, the guides were very informative and the whole experience was great!
365solm7/03/2021Once in a lifetime experience! An absolutely breath taking and mesmerizing experience! Our tour guide's knowledge about the bay seemed unlimited and his passion for the lagoon was contagious! I went for my first time 9 months after Hurricane Maria and to be able to... read moreAn absolutely breath taking and mesmerizing experience! Our tour guide's knowledge about the bay seemed unlimited and his passion for the lagoon was contagious! I went for my first time 9 months after Hurricane Maria and to be able to come back four years later and see how much the lagoon has continued to prosper is truly amazing! We were blessed to have a night where the plankton were at the brightest they have been in a long time. Any time someone asks me about Puerto Rico, I always have to tell them about the bio-bay and there is no other company I would recommend to take you than Island Kayaking Adventures! Thank you for all of the beautiful memories! read less
Dan Grogan7/08/2022Incredible! Our kayak trip on the Bio Bay was the highlight of our trip to Puerto Rico. I was a bit wary since we booked last minute and all of the other companies were booked up, but Island Kayaking Adventure... read moreOur kayak trip on the Bio Bay was the highlight of our trip to Puerto Rico. I was a bit wary since we booked last minute and all of the other companies were booked up, but Island Kayaking Adventure was fantastic. After a quick safety briefing we climbed into out two man kayaks and headed out into the water. MAKE SURE THAT YOU ARE GOING ON A DARK NIGHT WITH LITTLE MOONLIGHT! It was nearly pitch black, so we followed the glowstick on the kayak in front of us. The path through the mangrove trees was good for a laugh as everyone was bumping into trees and the kayaks around them. About half an hour in, the water began to glow as we paddled. By the time we emerged into the bay, the water around us was bright. You can't get out of the kayak as your body oils are bad for the ecosystem, but you're free to paddle and splash your hands. I'm not a big kayaker, but even when my arms were tired I didn't want to stop paddling because it was so beautiful! read less
Emily H3/13/2014 -
Awesome time loved it Amazing fun and had funny host helping us for the trip . They all were amazing made the vibes great definitely don’t regret one bit 🙌🏼We had Kenny and his crew forgot all the names but highly recommended
Z3215IWnicoleh5/07/2022Cool experience but with too many people. Tour guides were awesome but there were so many people it was a lot of hurry up and wait. With the different skill levels of paddlers it got really annoying. Add to that the 3 other companies with tours out... read moreTour guides were awesome but there were so many people it was a lot of hurry up and wait. With the different skill levels of paddlers it got really annoying. Add to that the 3 other companies with tours out at the same time and it was truly a cluster. read less
Puravida11273/04/2023Something you have to do in PR We had a pleasurable experience with this company. There are multiple companies doing the same thing at the same time so it can be overwhelming at times. Our group had 4 guides with 15 kayaks. We went at 6pm, but... read moreWe had a pleasurable experience with this company. There are multiple companies doing the same thing at the same time so it can be overwhelming at times. Our group had 4 guides with 15 kayaks. We went at 6pm, but the best time to go is the 8pm option because the darker the better.
Warning: this isn't a relaxing experience! You have to actively paddle your kayak (it's a double seater) for a solid 45 minutes (one way) in an extremely narrow canal in darkness. Each company's kayak has a colored light at the tail end so you can identify where your groups is. And with so many companies going at the same time, it gets chaotic, especially since you can't see anything. I was disappointed to see that there is a company with boats that go up and down the canal with the kayaks- very dangerous! Once we reached the lagoon, we all floated together holding on to each other's kayaks until it was dark enough to see the lights in the water.
The lights cannot be caught on camera, perhaps video. One of our group members lost his go pro so try not to bring anything! In order for the lights to show, you have to wiggle your hands/foot/paddle in the water. The way back would have been cool if we weren't stuck behind a boat with it's back light on, meaning the lights in the water couldn't be seen. This is something you had to do in Puerto Rico because I'm pretty sure its unique to this island, but I wasn't too impressed.
At the end of the tour, they have snacks and water. They take two pictures, which they post online for free.
You will get very wet so bring a change of clothes. The women's restroom only has 2 stalls (never any toilet paper) so be prepared for a long line. read lesswischme773/13/2015 -
Bio-bay Tour 45$ p.P.
Tolles Erlebnis, magische effekte, aaaaaber:
Wir haben uns für diesen Preis und die angesetzte Zeit mehr erhofft. Das paddeln war Spaß und hat die Spannung aufgebaut ubd mit Sicherheit auch die Belohnung attraktiver gemacht, dennoch sind 10 Minuten Verweildauer im... read more45$ p.P.
Tolles Erlebnis, magische effekte, aaaaaber:
Wir haben uns für diesen Preis und die angesetzte Zeit mehr erhofft. Das paddeln war Spaß und hat die Spannung aufgebaut ubd mit Sicherheit auch die Belohnung attraktiver gemacht, dennoch sind 10 Minuten Verweildauer im Zentrum der bay mmn. Zu wenig. Daher nur 4/5 punkten.
Ansonsten absolut lohnendes naturhighlight. read lessFrederic S10/20/2013Amazoing trip!! This experience was amazing! Nestor, Talia, Pedro and the rest of the gang were all very attentive and fun. It is obvious they have done this a 1,000 times and know what they are doing. My kids had a blast... read moreThis experience was amazing! Nestor, Talia, Pedro and the rest of the gang were all very attentive and fun. It is obvious they have done this a 1,000 times and know what they are doing. My kids had a blast and my husband said it was the highlight of our vacation. Recommended 1,000% read less
Sheila Q8/09/2022Fun experience! We are a team of 5. And all of us enjoyed it. I read some reviews noting about bug bites, so I wore long jeans and running shoes. I was soaked wet after 15 minutes into the trip had started.... read moreWe are a team of 5. And all of us enjoyed it. I read some reviews noting about bug bites, so I wore long jeans and running shoes. I was soaked wet after 15 minutes into the trip had started. Many people wear swimming suits and no shoes1 Smart!
There was small snack and bottles water provided after the trip. Very considerate! I appreciate it! read lessrachaelOhio8/12/2015 -
Bio Bay The guides were excellent - organized, informative, and jovial. Kenny and a few other guides were more than kind and waited for nearly 30 minutes after the tour ended until our transportation arrived. Some novice kayakers had trouble managing... read moreThe guides were excellent - organized, informative, and jovial. Kenny and a few other guides were more than kind and waited for nearly 30 minutes after the tour ended until our transportation arrived. Some novice kayakers had trouble managing their boats in the dark, but it was not disruptive to the group. The bay ecosystem has suffered from the effects of Hurricane Maria. The bioluminescence was not as spectacular as we expected, but it was still amazing. On a moonless night, we could see every star in the sky. Truly a memorable experience. read less
X5738PAmonicar4/04/2022Excellent, would definitely recommend!! Wonderful experience! Our tour guides were excellent, attentive and extremely personable! We were guided to the bioluminescence bay and guided back with ease. Very organized! Seeing the bioluminescence was amazing! We weren't rushed and got to enjoy the experience. When... read moreWonderful experience! Our tour guides were excellent, attentive and extremely personable! We were guided to the bioluminescence bay and guided back with ease. Very organized! Seeing the bioluminescence was amazing! We weren't rushed and got to enjoy the experience. When we got back we were greeted with water and snacks!
Will definitely be coming back!
TIP!!
Check what phase the moon will be in when you are planning your kayaking tour! You can go at any time but the best time is to go during a New Moon phase when it is darker at night, the glow is more visible.
ALSO! The tides, rain, storms and temperature alter the visibility of the bioluminescence, just call ahead and and ask to see how to bay has been looking lately to get the most out of your experience! read lessannalysem143/07/2022Increíble! Vine a probar esta experiencia en Puerto Rico. Vengo desde Barcelona y fue algo nuevo y enriquecedor para mi.
Los monitores estuvieron muy pendientes de nosotros todo el rato y nos instruyeron en cada momento. El viaje hasta la laguna fue... read moreVine a probar esta experiencia en Puerto Rico. Vengo desde Barcelona y fue algo nuevo y enriquecedor para mi.
Los monitores estuvieron muy pendientes de nosotros todo el rato y nos instruyeron en cada momento. El viaje hasta la laguna fue muy divertido, y una vez allí, nos contaron acerca de la fauna y flora de la zona. Nos hicieron un truco de magia, donde vimos el agua brillar (algo que realmente nunca había visto anteriormente y fue una experiencia mágica...)
La vuelta es contra corriente y a oscuras: Se requiere un poco de fuerza en los brazos, pero los monitores siguen estando muy encima tuyo, sin dejar que te pierdas.
No es para nada peligroso y ellos te van iluminando el camino.
Volvería a repetirlo sin duda! read lessLaia S7/02/2019 -
Less moonlight the better The night of our tour, the moon was too bright (that’s what we were told) so unfortunately we could not see the glowing in the water. The guides provided a tarp for us to wear over and it did help... read moreThe night of our tour, the moon was too bright (that’s what we were told) so unfortunately we could not see the glowing in the water. The guides provided a tarp for us to wear over and it did help a little for us to see but not much. Experience was still fun and informative regardless. Pedro was funny and engaged in conversation with us throughout most of it, the other guides not so much read less
Sivornne M4/05/2023 -
Great guides Really great guides! Knowledgeable and organized and made the experience memorable. Provided snacks and water afterwards too.
Stephanie A4/23/2023Once in a lifetime experience! We loved our entire experience! Daniel, Christian, Kenneth & Bellen were so fun! Can’t wait to return!
973chelsieb8/18/2021Bio bay fajardo Hello, I took the tour yesterday, 09.02.2019 and it was incredible! Perfect experience of seeing the lagoon shining because of the dinoflagellates! in addition, the staff that accompanied us were extremely helpful, both before and during and after the tour.... read moreHello, I took the tour yesterday, 09.02.2019 and it was incredible! Perfect experience of seeing the lagoon shining because of the dinoflagellates! in addition, the staff that accompanied us were extremely helpful, both before and during and after the tour. I rented a car and went with my family, the IKA team emailed me the detailed address to get to the place of the tour. there, they gave us repellent, snack and water! I recommend. read less
joanarf222/10/2019
Travel
Things To DoTO DO
In Fajardo
Fun Activities
Sea Ventures
Scuba diving excursions, classes, and snorkeling tours.
Paradise Seekers
Waterfall Slides Adventures on natural swimming pools.
Where to eat?
Las Vistas Cafe
For Breakfast or Brunch, we loved it.
El Bohio Restaurant
It is one of our favorite places to eat local and fresh seafood.
Lodging Around
Fajardo Inn
Hotel
Sueños del Mar
Vacation Rentals