Grand Cayman Bioluminescent Bay Adventure
3.8 / 5 · 42 traveler reviews




Grand Cayman is one of the few places in the world where you can experience the incredible natural phenomenon of bioluminescence Discover the enchanting magic of Grand Cayman's Bioluminescent Bay, where millions of glowing plankton illuminate the water under the night sky. This unique boat tour invites you to witness this mesmerizing natural light show, guided by local experts who reveal the secrets behind the glowing waters. Your adventure begins at Starfish Point, where you'll encounter the intriguing upside-down jellyfish and take in the serene beauty of the beach. Next, experience the wonder of Bio Bay, where you can admire the glowing waters from the boat or opt for an unforgettable swim, immersing yourself in this rare phenomenon up close. This captivating tour is perfect for nature lovers and adventurers alike—a must-see highlight of Grand Cayman that promises memories to last a lifetime!
Your experience
Stop 1
Start your adventure with a scenic 40-minute drive to the stunning East End, soaking in breathtaking island views along the way. Your first stop? The serene Starfish Point, a hidden gem where you’ll learn about the captivating upside-down jellyfish and take in the beauty of the island as the sun sets. But the magic doesn’t stop there—next, we head to Bio Bay for an unforgettable encounter with bioluminescent waters. Watch as the sea glows with natural light, offering you the perfect moment for awe-inspiring photos.
Stop 2
Discover the hidden gem of Grand Cayman in the serene Cayman Kai—a mesmerizing bioluminescent bay that comes to life at night. Under the guidance of local experts, you'll experience a magical swim surrounded by millions of glowing plankton, lighting up the water with every movement. With approximately 2 hours on the water between Starfish Point and Bio Bay, there’s plenty of time to enjoy both sides of this unique evening adventure. After an incredible bioluminescent experience, we'll take you back to your accommodation. Get ready to relax, enjoy the ride and share your moments together on the way back! Escape the crowds and immerse yourself in this unforgettable, one-of-a-kind boat adventure!
What’s included
- Certified captain and crew
- Roundtrip Transportation from Seven Mile Beach hotels
- 2-hour boat experience
- Cayman Islands Marine Park entrance fee
- In-vehicle air conditioning
- Bioluminescent Bay experience
- Water & fruit punch
- Snorkeling equipment — mask, snorkel & life jacket
- Starfish Point visit
Not included
- Snacks
- Gratuities
- Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.
- Towels
Meeting and pickup
Your tour will depart from Kaibo Restaurant Pier located at 585 Water Cay Rd. 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.
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
- 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
- Flotation devices for children under age 3 are not available
- The total tour time includes the travel time, with the actual Bioluminescence Tour being 2 hours from dock to dock.
- Bring a towel, an extra shirt or change of clothes, and comfortable clothing for the evening. You may also bring your own rash guard.
- Experience the Wonder: Please note that the bioluminescent display is a natural phenomenon, and its intensity can vary nightly. We appreciate your understanding as you witness this breathtaking spectacle in its unique form.
- Visual Variability: Images are for illustrative purposes only; the actual experience may differ based on the enchanting nature of bioluminescence.
- Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.
- Bioluminescence is a natural phenomenon, and its intensity can vary nightly due to environmental factors.
- To help protect this delicate ecosystem, please do not apply sunscreen, lotions, creams, oils or other skin products before entering Bioluminescent Bay. These products can affect the organisms responsible for the natural glow.
- Please respect all marine life and do not touch, handle, remove or disturb wildlife. Observe sea stars, jellyfish and other marine species in their natural environment and follow your guide’s instructions.
- This tour operates rain or shine. Please check the forecast and dress appropriately for the day’s weather.
- Depending on the time of year, you may wish to bring eco-friendly insect repellent for added comfort.
- Wetsuits are available in adult sizes Small and up.
- Departure and pickup times vary throughout the year. The boat generally departs around 6:30 PM during summer and 5:30 PM during winter, with hotel pickups scheduled earlier. Please follow the exact time provided in your confirmation.
- Pickup is available from participating accommodations in the Seven Mile Beach area. Please provide your hotel or accommodation name at the time of booking so we can coordinate your pickup.
- No Hotel Information: If accommodation information is not provided at the time of booking, your meeting point will be Raleigh Quay Private Dock, 292 Raleigh Quay, Governor’s Harbour.
- Waiver: A waiver is required for participation and should be completed before your tour date.
- Souvenir photos may be available for purchase and are not included in the tour price.
- Late Arrivals / No-Shows: Guests who arrive late or fail to show up for their scheduled activity are not eligible for a refund.
- Swimming in Bioluminescent Bay is optional. Guests who choose to swim should be comfortable entering and exiting the boat and moving independently in the water.
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.