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Bio Bay Kayak Tour in Fajardo, Fajardo, Puerto Rico
The classic bio bay run

Bio Bay · Fajardo

Bio Bay Kayak Tour in Fajardo

Details checked August 2026
4.72,170 reviews
2 Hours

Rating as read on Viator, September 23, 2026.

FajardoView map

A guided kayak paddle through Laguna Grande near Fajardo, one of Puerto Rico's bioluminescent bays where the water glows with each paddle stroke.

  • Free cancellation

What you'll do

Laguna Grande, reached by kayak through a mangrove channel from near Las Croabas, is one of Puerto Rico's bioluminescent bays, where microorganisms in the water light up when disturbed, turning every paddle stroke into a streak of blue-green glow. Guides lead the two-hour paddle out through the mangroves and into the open lagoon after dark, when the bioluminescence is visible. How bright the glow appears depends heavily on the moon phase, since a full moon washes out the effect, so tours are scheduled around the lunar calendar.

Pro tip

Book around a new moon if the glow itself is the priority; near a full moon the ambient moonlight washes out much of the bioluminescent effect.

Included

  • Tandem two-person kayak, paddles and backrests
  • USCG approved life jacket
  • Kayaking and safety instructions
  • Light snacks and refreshments
  • Eco-friendly insect repellent

Not included

  • Gratuities

Highlights

  • Guided night kayak through a mangrove channel
  • Bioluminescent water that glows with each paddle stroke
  • Departs near Las Croabas in Fajardo
  • Scheduled around the moon phase for the best glow

Good to know

Meeting point
Kayak Village kiosk 11, Las Croabas, Fajardo (free parking by the roundabout) map
Intensity
Active

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