Witness nature’s glow in Grand Cayman’s world-famous Bioluminescent Bay, where millions of microscopic plankton illuminate the water with every movement. This unforgettable evening boat tour invites you to swim among the stars—or simply enjoy the glowing display from the deck—as our expert local guides share the fascinating science and stories behind this rare natural phenomenon.

The adventure begins at Starfish Point, where you’ll have a chance to explore the calm, shallow waters and discover the curious upside-down jellyfish that call it home. Then, under the night sky, we head to Bio Bay for the main event—a glowing swim you’ll remember forever.

Whether you dip in or stay dry, this magical two-stop tour is a must during your visit to Grand Cayman.

Wheelchair accessible

Infants and small children can ride in a pram or stroller

Infants are required to sit on an adult’s lap

Not recommended for travelers with poor cardiovascular health

Suitable for all physical fitness levels

Travelers must bring their own towel

Please be aware that the tour start time may vary depending on the time of year to ensure the best experience.

Please note that this natural wonder varies in intensity each night, making every visit uniquely spectacular.

Total tour time includes travel time, with the actual Bioluminescence Tour lasting 2 hours from dock to dock.

Tours are scheduled according to moon phases, so availability may vary.

Please note that images are for illustrative purposes only; your actual experience may differ, showcasing the enchanting unpredictability of bioluminescence.

Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.

Flotation devices for children under age 3 are not available