Bio Bay Kayak Tour Details
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.
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 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.



- Duration: 2 Hours
- Meeting Point: Las Croabas, Fajardo, Puerto Rico
- Tour Offered in English or Spanish
- Kayak, paddles, and life jacket
- Pre-tour safety training
- Low-intensity navigation lights
- Bug repellent and snacks (water and granola bars)
- Eco-interpretive guide
- First aid and towing equipment
- Gratuities
- Transportation
- Valuables (should not be brought along as they may get wet)
Check-in details
Arrive at Las Croabas, Fajardo 15 minutes before the tour for check-in and safety briefing. Follow the instructions provided in the confirmation email for accurate directions.
What to bring
- Cell phone (for communication before the tour)
- Comfortable clothes that can get wet (bathing suit or active wear)
- Water shoes
- Towel and change of clothes for after the tour
- Cash for gratuities
Special requirements
- Participants must be able to communicate verbally in English or Spanish.
Restrictions
- Maximum weight limit: 240 lbs per person, 425 lbs per 2-person kayak.
- Not suitable for pregnant women or guests with neck, back, or heart conditions.
Health & Safety
- Fumes from volcanic gases are hazardous to everyone’s health. Visitors with heart or breathing problems, infants, young children, and pregnant women should avoid areas where fumes persist.
Need a ride to/from SJU?
Puerto Rico Shuttle
Our parent company, GO Puerto Rico Shuttle, offers affordable, reliable, on time and safe ground transportation to/from Luis Muñoz Marín international airport (SJU), and to Hotels, Cruise Terminals, Businesses and Residences, throughout the Island.
