Bioluminescent Bay, Fajardo

Marvel at an unusual natural phenomenon at Bioluminescent Bay, one of the only locations in the world home to the glowing organisms. The creatures themselves, a type of plankton, emit a glow when disturbed or touched. Join an excursion offered by one of the many tour companies in the area, and you'll make your way through the darkness to the lagoon, passing through mangrove swamps along the way. Keep in mind that conditions may not always be ideal for viewing the glowing critters, and you'll need a reservation with a tour group in order to visit. Plan to see Bioluminescent Bay and other attractions that appeal to you using our Fajardo trip itinerary planner.
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2,552 reviews
  • The Bioluminescent Bay is one of those surprises from the nature. Try to visit it on a night with no moon or cloudy. I had seen it a decade before and the luminescence from the micro organisms makes.....  more »
  • A group of 9 of is all booked the bio bay tour on a Friday night. Angel was our lead guide as well as his team, George, Gustavo, Adriel and a couple others whose names escape me. Angel was incredibly....  more »
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