Bioluminescent Bay Tours
Discover Puerto Rico’s beautiful bio bays
Bio Bay Tour with Transportation from San Juan
Overview
Location: Fajardo, Puerto Rico
Duration: 2 Hours + 2 Hours Transportation
Ages: 7+
Cancellation: Full refund if canceled 24 hours in advance; $10 fee applies.
Bring excitement to your vacation with a night kayaking tour in the Bio Bay of Laguna Grande Reserve in Fajardo. The Bio Bay has microscopic organisms called dinoflagellates that produce a glowing effect when they are stirred by a paddle.
What's included
Hotel pickup and drop off
Guided Night Kayaking Eco-Adventure
Live-commentary in English or Spanish by certified tour guides
Kayaking lesson for beginners
Life jackets (US Coast Guard Approved)
Two-person sit-on-top kayaks
Wheelchair accessible adaptations
What's not included
Mosquito repellent
Waterproof cell phone pouches
Highlights
An Eco-Adventure – For outdoor enthusiast and nature lovers only.
Night Kayaking – Through the mangrove forest of Laguna Grande Reserve.
Chance to paddle through the glow of bioluminescent water.
Tour Location
Bio Bay Kayak Tour (No Transportation)
Overview
Location: Fajardo, Puerto Rico
Duration: 2 Hours
Ages: 6+
Cancellation: 48 hours notice required for full refund; no-shows incur full charge.
Embark on a magical two-hour nighttime kayak tour through Fajardo's Bio Bay, one of the few bioluminescent lagoons in the world. Paddle through a mangrove channel in the Laguna Grande Nature Reserve and witness the glow of bioluminescent waters under a starry sky. Led by expert guides, this tour offers an unforgettable exploration of Puerto Rico’s unique ecosystems.
What's included
Kayak, paddles, and life jacket
Pre-tour safety training
Low-intensity navigation lights
Bug repellent and snacks (water and granola bars)
Eco-interpretive guide
What's not included
Gratuities
Transportation
Itinerary
Check-in & Pre-Tour Training: Meet at Las Croabas, Fajardo for a brief check-in and kayaking safety instructions.
Entering the Bio Bay: Paddle through a red mangrove channel into Laguna Grande.
Bioluminescence: Marvel at the glowing waters as you explore the Bio Bay at night.
Stargazing: Learn about constellations while enjoying the tranquil surroundings.
Return: Paddle back through the mangroves guided by kayak navigation lights.
Highlights
Paddle through one of the few bioluminescent bays in the world
Witness the glowing waters of Fajardo’s Bio Bay
Stargazing in a serene natural environment
Eco-friendly, guided experience in Puerto Rico’s protected mangrove ecosystem
Tour Location
Tour reviews
‘Our experience with Kayaking Puerto Rico was incredible, and a huge part of that was thanks to our amazing tour guide, Kevin! He made the entire trip fun and exciting, keeping the energy up while guiding us through some of the most beautiful spots in Puerto Rico.”
• Kathleen B, Google Review"We had an amazing time. I’m so glad that a group cancelled so we got to experience the Bio Bay tour. Guides are very helpful, friendly, and definitely amazing. I still have pending places that I didn’t visit, but planning on going back soon so I can visit them with this tour company.”
• Carolin J, Google Review“The highlight of our vacation! What a unique experience. It really does glow. You do want some level of fitness to keep up and wouldn't recommend if you are nervous on the water in the dark. We went a few days before a full moon so it was bright out, but we still got to see the glow!”
• Gabby Y, Google ReviewFAQs
-
If you click “book now” on the tour of your choice, and start the booking process you will be able to see how many spots are available on each tour. If there is limited availability, the number of spots left will appear after you select your preferred date.
-
Most bio bay tours last between 1.5 to 2 hours. That includes time paddling out, exploring the lagoon, and learning about the glow. You’ll usually be on the water for about an hour, depending on weather and group size.
-
Yes boat tours are only available out of La Parguera. Click here to book your boat tour.
-
Yes, for the Fajardo Bio Bay Tour, the weight limit is 200 lbs. The Bioluminescent Bay with Transportation from San Juan tour has a weight limit of 290 lbs.
-
Yes, click here to learn more and book a Vieques bio bay tour.
-
Cancellation policies vary from tour to tour. Click “Book now” of the tour you’re interested in and scroll to the bottom to see the cancellation policy for that particular tour.
-
Bio bays are visible year round in Puerto Rico, but the best time to see their glow is during the dry season (December - March) on a moonless or cloudy night.
Experience the Magic of Puerto Rico’s Bioluminescent Bays
Puerto Rico is fortunate enough to be home to three of the five bioluminescent bays found in the world; There is Laguna Grande in Fajardo, La Parguera in Lajas, and Mosquito Bay in Vieques.
Puerto Rico’s bio bays are easily some of the most popular and awe-inspiring destinations on the island. Don’t miss an opportunity to kayak at night and watch the water illuminate in shades of blue, green, and white.
Want to know what makes the water in Puerto Rico’s bio bays sparkle and glow? The bays are populated by millions of microorganisms called dinoflagellates who make their food by photosynthesis, which is the source of this spectacular glow. A little agitation of the water - whether it be by a kayak’s paddle or you hand, and the water lights up with this amazing microorganisms.
If you’re wondering when the best time to see the Bio Bays we’ll help you time your visit accordingly
Regardless of which of the three bays you choose, you won’t forget this amazing experience.