Available languages
1 hour 30 minutes
Mobile ticket
Kayak through the mangroves of Laguna Grande and experience the natural glow of bioluminescence. Visibility varies as it's a natural phenomenon; a tarp may be used to block out light and enhance visibility, making it easier to see even subtle sparkles.
Advisories:
1. Sargassum, a harmless local seaweed, may occasionally be present and emit an odor.
2. Solo kayakers and odd-numbered groups will be paired up.
3. You will get wet—dress accordingly.
4. During peak season, high traffic may cause light contact between kayaks; our experienced guides ensure a safe and enjoyable tour.
5. Participants aged 6–14 must ride in a tandem kayak with an adult.
Participants aged 15–17 must be accompanied by an adult on the tour.
6. Wear comfortable, quick-drying clothes and water shoes or sandals. You will get wet.
Travelers should have at least a moderate level of physical fitness
Not allowed for children under 6yrs old
Not allowed for pregnant guests or those with casts, heart conditions, neck/back issues, epilepsy, or dizziness.
Weight limit p/p of 225 lb (102kg)! Checks will be conducted prior to boarding; no participation nor refunds if exceeded.
Participants aged 6-14 must be accompanied by an adult in a tandem kayak.
Participants aged 15-17 must be accompanied by an adult on the tour.
Wear comfortable, quick-drying clothes and water shoes or sandals. You will get wet.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Laguna Grande
This is the one adventure not to be missed while in Puerto Rico. Paddle your way through the mystical mangrove channels leading to “Laguna Grande”. There you will feel on another planet as the water comes alive in a magnificent glowing spectacle that must be seen to be believed!
Snacks
Double kayaks with backrest, paddles and lifejackets.
502 reviews
Total reviews and rating from Viator & Tripadvisor
Sachin T,May 13, 2026
- Review from Viator
I would say the trip to and fro was worth it. We booked the 6.30 PM tour and I would add that it was well organized. They even safekept our belongings (Kay keys, etc.) for us. Provided light snack at the end. With our team. 4 or 5 of them rode the kayaks to help us where people would get stuck on a mangrove root or went sideways. The kayaks were good quality and nothing to complain. Well you will get a lot of see weed into your kayak while paddling (no escaping that). We were able to observe the colors but they were very light but observable with the naked eyes. Capturing them with a phone camera was not possible however all of us saw luminescence with our eyes. They explained how the phenomenon occurs scientifically and guided throughout the ride. We came a couple of hours early and whilst went into a small restaurant until time arrived. Some would say that in Fajardo, english may not be as popular as in San Juan (specially in small restaurants). Have some cash at hand, because not all the restaurants may accept cards (especially amex).
Paris G,May 5, 2026
- Review from Viator
This tour was beautiful! The scenery to the bay was something I wish I enjoyed in the daylight, super picturesque! Pedro was our tour guide and he was super funny and attentive. Jesus victor and Gabriel were all super friendly and helped us all as we were crashing into each other lol. The bad part about the tour was we really didn’t see any light and this isn’t the tour that you can get in the water and all other tours happen at the same time so there are about 80 kayaks in the water at the same time doing single file lines which was a bit aggravating due to the river trail being so small before getting to the actual bay. Other than that great time!!
Cynthia B,May 2, 2026
- Review from Viator
Wonderful experience with great tour guides. They were very informative and fun! I would definitely recommend.
Adam M,May 1, 2026
- Review from Viator
Easy one mile paddle in to the lagoon, guides were very informative and made the adventure very fun.
MariaCristina R,Apr 26, 2026
- Review from Viator
Very good experience with the tour guides. Especially Pedro and Victor because of their closeness with us, they were very aware that everything went well.
Matt G,Apr 26, 2026
- Review from Viator
Didn’t see bioluminescence but at the end of the day it was a great nighttime kayak adventure under the stars
Joann W,Apr 24, 2026
- Review from Viator
The kayak ride out and back was awesome, the luminescent part was disapointing, not what I expected. Has very little room in between kayaks to swipe the water to see it.
Lisa N,Apr 21, 2026
- Review from Viator
The Good-The guides were great. They looked after their group well and helped them if needed. The Bad-The kayak trip was down a narrow creek with MANY fellow kayakers going in both directions. So if you are not great and practiced with kayaker, you will turn sideways in creek blocking creek. Plus should the water was only 3'-4' deep. So I kept hitting root covered bottom of creek. When we finally got to the bay, the guides gave us a tarp to place over our heads in the kayaks and asked us to put our hand in the water to see the bioluminescent. There were very small little bioluminescent material. Plus the kayaks were placed side by side. So placing your hand in the water was difficult. Overall the trip was not worth it. It was a lot of work rowing out to the bay just to see very little luminescence.
adellah0,Apr 18, 2026
- Review from Tripadvisor
I had a great time, honestly with all of my friends it was kinda chaotic but our tour guide Edward it was truly fantastic
B1632QHsusanr,Apr 18, 2026
- Review from Tripadvisor
This was very disappointing. It was the most expensive and shortest of all the tours offered, but it was the only one with capacity on short notice. Now I know why. There were so many kayaks that there were traffic jams the whole way out and back and it felt like bumper cars at an amusement park. The staff seemed to be on automatic pilot - just going through the motions. We weren't paired with a guide so we ended up with whatever group was nearby. The main guide spoke so fast that we only caught a fraction of what he said, and he often spoke with his back to us or from the front of the line of kayakers so that those of us in the back couldn't hear him. Of the 90 minutes, we only spent at most 20 minutes in the lagoon observing the bioluminescence. I would not recommend this company - book earlier and get on a two-hour tour from another company. There are many options..
Operated by Island Kayaking Adventure