Grand Cayman Bioluminescent Bay Tour With Starfish Point
5.0 / 5 · 1 traveler reviews
Grand Cayman’s Bioluminescent Bay glows after dark as millions of microscopic plankton light up with every movement. The shared evening boat tour starts at Starfish Point, where you can explore calm, shallow waters and look for upside-down jellyfish before continuing to Bio Bay under the night sky. Local guides explain the science behind the glow during a guided swim, while the boat deck provides a dry viewing option. Round-trip transportation from Seven Mile Beach hotels is available, and the bay’s natural intensity varies each night, so the display can look different from one visit to the next.
Your experience
Stop 1
Prepare for an unforgettable island adventure! Your journey begins with a scenic 40-minute drive across Grand Cayman’s breathtaking landscape, heading toward the island’s stunning East End. Next, you’ll arrive at the iconic Starfish Point, one of the Cayman Islands' most beloved sunset spots. As the golden light reflects off the calm, crystal-clear waters, you’ll have the perfect chance to snap incredible photos and soak in the beauty of this serene coastal gem. A must-do experience during your Cayman getaway—relax, explore, and let the magic of the moment take over.
Stop 2
Uncover one of Grand Cayman’s most enchanting secrets in the tranquil waters of Cayman Kai—a glowing bioluminescent bay that comes alive after dark. Guided by local experts, you'll slip into the warm, calm water for a magical swim as millions of microscopic plankton light up around you with every movement, creating a surreal underwater glow. After this once-in-a-lifetime experience, sit back and relax as we take you comfortably back to your accommodation. Share your stories, relive the magic, and enjoy the peaceful ride home. Escape the crowds and dive into a rare natural wonder—this is Grand Cayman like you’ve never seen it before.
What’s included
- Water and fruit punch
- Certified captain and crew
- Snorkel set: Fins, snorkel and mask
- Roundtrip Transportation from Seven Mile Beach hotels
- Life vest
- Entrance fee to the Marine Park of Cayman Islands
- In-vehicle air conditioning
Not included
- Gratuities
- Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.
- Snacks
Meeting and pickup
Your tour will depart from Captain Marvin's dock, located at Raleigh Quay. Please be here 30 minutes before your trip time. Our driver, who will be wearing a polo shirt with our logo, will call out your name upon arrival. Please note that the driver can wait for a maximum of 5 minutes.
Before you go
- 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
- Late Arrivals / No-Shows: Guests who arrive late or fail to show up for their activity are not eligible for a refund.
- Weather: This tour operates rain or shine. Please check the forecast and dress appropriately for the day’s weather.
Cancellation policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Check the policy for your selected date and option before booking.
Check dates and book on Viator →Confirm the meeting point, inclusions, cancellation policy and final price on Viator. We may earn a commission from your booking.