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Bio Bay Kayaking: Glow in Laguna Grande
4.4
136 Ratings
Fajardo
Experience the magic of bioluminescent waters on a night kayak tour in Laguna Grande. Book now for an unforgettable eco-adventure!
Experience the magic of bioluminescent waters on a night kayak tour in Laguna Grande. Book now for an unforgettable eco-adventure!
Duration:
4 hours
Cancellation:
24 hours
Highlights
- Laguna Grande - Bio Bay Night Kayaking in the Mangrove Forest Reserve of Las Cabezas de San Juan
- Laguna Grande - Bio Bay Night Kayaking in the Mangrove Forest Reserve of Las Cabezas de San Juan
What's Included
- Must be able to swim to join this tour
- Life jacket – US Coast Guard Approved
- 101 kayaking lesson
- Round Trip Transportation
- Two person sit-on-top kayaks
- Max weight 240 pounds
- Must be able to swim to join this tour
- Life jacket – US Coast Guard Approved
- 101 kayaking lesson
- Round Trip Transportation
- Two person sit-on-top kayaks
- Max weight 240 pounds
What's Not Included
- Mosquito repellent is not provided.
- Waterproof cell phone pouches are not provided.
- Gratuity is not included, but greatly appreciated.
- Pregnant women are not allowed to participate in the kayaking tour
- Mosquito repellent is not provided.
- Waterproof cell phone pouches are not provided.
- Gratuity is not included, but greatly appreciated.
- Pregnant women are not allowed to participate in the kayaking tour
Additional Information
Add some thrill to your vacation with our night kayaking tour in the Bio Bay of Laguna Grande Reserve, Fajardo. The Bio Bay is home to tiny organisms known as dinoflagellates, which create a glowing effect when disturbed by paddles.
What should you wear?
Be ready to get wet from the waist down. Opt for lightweight, synthetic clothing or a swimsuit….
Add some thrill to your vacation with our night kayaking tour in the Bio Bay of Laguna Grande Reserve, Fajardo. The Bio Bay is home to tiny organisms known as dinoflagellates, which create a glowing effect when disturbed by paddles.
What should you wear?
Be ready to get wet from the waist down. Opt for lightweight, synthetic clothing or a swimsuit. For safety, avoid walking barefoot on the beach.
What to bring?
Pack a change of clothes, a towel, and mosquito repellent (just in case!). Cameras are welcome, but ensure they are in a waterproof bag or case.
What not to bring or wear?
Avoid jeans or sweats. Leave valuables at home to prevent them from getting wet, lost, or damaged.
Storage available?
Yes, but remember that anything taken on the water might get wet, damaged, or lost.
- An Eco-Adventure – Perfect for outdoor enthusiasts and nature lovers.
- Opportunity to witness the glow of bioluminescent waters.
- Live commentary on the ecosystem available in English or Spanish.
- Weight limit is 240 lbs. per person.
- Pregnant women are not allowed to participate in the kayaking tour
Location
Laguna Grande
Las Cabezas de San Juan Nature Reserve
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Customer Ratings
4.4
(136 Ratings)
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Dennis_t
May 1, 2026
The guides were great and... - The guides were great and entertaining. Don't go in expecting to see a ton of bright lights and you won't be disappointed. Kayaking in the night under the mangroves was a pretty spectacular experience on its own.
Review provided by Viator
Geoffrey_c
Mar 15, 2026
Great trip, one of the coolest we had been on - This is a great trip. The meeting area is very clean and organized with a food/drink pop up and restroom. There are multiple companies running the tour and lots of people but they all manage it very well and the whole trip is well organized. After a brief kayak do’s and don’ts they take you to the kayaks and then you go in a single file line kayaking through beautiful mangroves and “hammocks” until you get to the bay. You all stay together until it gets dark, then they put a tarp over your heads and you can see the glow when you swish your hands in the water. It may be visible during other times without that, but we appreciated the effort. The kayaking back is pitch dark and we thought very exciting. You can see the glow from the paddles hitting the water. We would very highly recommend!
Review provided by Viator
Hannah_b
Mar 1, 2026
Very well organized, good... - Very well organized, good safety briefing and had all the equipment provided. Our captain Emily was super supportive and made us feel welcome and included. Definitely recommend as a must do for visiting Puerto Rico!
Review provided by Viator
Jessica_v
Feb 20, 2026
Do it!!! - Great for all levels , Friendly guides and captains who offered help every step of the way.they make lots of efforts to really keep everyone safe. Will definitely recommend!!
Review provided by Viator
Olga_c
Feb 9, 2026
Great night - Work on upper arm strength and just have fun and follow the incredible guides. Enjoy all you see along the way to the bay.
Review provided by Viator
Megan_c
Jan 10, 2026
Great time!! - Guides were great! Very kind and patient. Great experience all around, we would do it again and recommend to friends.
Review provided by Viator
Masih_v
Dec 24, 2025
It was a good experience... - It was a good experience kayaking at night and also the glowing organisms
We went through a channel to the bay at night
Review provided by Viator
Amber_j
Apr 8, 2026
Something different! - Something different and new! Kayaking at night through the mangroves was a very unique experience! I have to say that I enjoyed that more than the bio bay part. The water didn’t light up much when we went. Nothing like any pictures that I have seen. Not saying it doesn’t happen. Just didn’t happen the night we were there and there wasn’t a moon visible that night. The guides provided tarps to put over our heads to make it darker…but it didn’t make a huge difference. Felt a little weird to be under a giant canvas tarp in the middle of a lake.
Fine for all ages. The transport ride was on time and easy to find. The van was very warm for the whole hour ride though :/
The life jackets smelled like wet towels that sat in a washing machine for days. Not sure how that can be remedied in the future. But definitely smelled bad.
Over all would recommend for the experience! Lil pricey. But it was a vacation activity!
Review provided by Viator
Mark_d
Dec 17, 2025
Underwhelming, but friendly and fun your guides - While the tour guides were super friendly and fun, the bio bay itself was underwhelming. It’s about a 30 minute kayak ride to the bay, when we got there it was still light out so we had to wait in the bay. For 5 minutes they put a tarp over our kayak and we could moderately see the bioluminescent lights. Our tour also was 2 days before the new moon. The kayak ride was fun, but I feel that $115 was a very steep price for this and wish I spent it on something else. Also, if you book solo or with an odd number group, you will need to pair up with somebody else from the tour.
Review provided by Viator
Andreadd9493ay
Apr 27, 2026
Not worth the money and time- extremely disappointing - I would not recommend this tour, especially for the price charged, as it felt like false advertising.
We went on this excursion with our 2 kids and were instructed to paddle out in complete darkness in canoes to the middle of the ocean, where we were suppose to see vivid bioluminescent water. When we finally arrived, our group was tied together, and the guides placed a tarp over our heads and asked us to splash the water to see small flashes of light.
We saw very little, and the experience was uncomfortable and unsettling- especially for our children, who were frightened. For the amount paid, this experience was misleading, poorly executed, and absolutely not worth the cost.
Review provided by Tripadvisor
