Bioluminescent Lagoon (Laguna Grande)

This enchanting lagoon glows with ethereal blue-green light when disturbed, created by millions of bioluminescent dinoflagellates that illuminate with each paddle stroke and movement. Located on the east coast of Puerto Rico near Fajardo, Laguna Grande offers one of the Caribbean's most magical nighttime experiences, where the water becomes a living canvas of natural light. Tours typically depart at sunset and include kayaking or boat rides through the luminous waters under the stars.