Bioluminescence, defined as “life-emitting light”, is the production of light by a living organism. The high concentration of bioluminescent plankton in one particular bay in Grand Cayman is extremely rare, making it look as though the water is aglow with bright blue light.
Several tour operators offer tours of Bio Bay at night. While you can see the bioluminescence from a boat, it’s recommended to get into the water for the most beautiful view.
Make sure you don’t miss this magical experience on your next visit to Grand Cayman!