Grand Cayman Bioluminescent Bay Adventure
Overview
Available languages
3 hours
Mobile ticket
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!
Additional Info
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
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.
Travelers must bring their own towel
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.
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
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
Air-conditioned vehicle
Snacks
Gratuities
Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.
Meeting and Pickup
Pickup points
Select a pickup point
What To Expect
Starfish Point
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.
Bioluminescent Bay
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. 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!
Options
Grand Cayman Bioluminescent Bay Adventure
Pickup included
Reviews
27 reviews
Total reviews and rating from Viator & Tripadvisor
Do not book. They don't stand behind their bookings
Orly L,
Nov 24, 2025
- Review from Viator
1.00This felt like a booking trap. We were allowed to book when seats didn't exist and were only informed six hours prior, when it was too late to book with a different vendor.
Magical Experience
Daniel K,
Oct 28, 2025
- Review from Viator
5.00The tour is an amazing experience and the operators are first class. Our guides were professional, experienced, engaged, and really took care of us. I don't recommend taking the tour in October as the increased rain resulted in a multitude of mosquitos. The guides did their best, but my wife ended up with 80 bites (we counted) so bug repellent is a must in the fall.
amazing experience!
will b,
Sep 23, 2025
- Review from Viator
5.00excellent experience! bring mosquito repellent! holding starfish then swimming in the bioluminescent bay? core life memory.
Unbelievable!
Robert M,
Sep 14, 2025
- Review from Viator
5.00What a great experience. Never seen anything like this and would say it’s definitely one of the wonders of the world. The staff were outstanding and not only did they answer everyone’s questions but made the trip extremely fun. Thanks!
Don't waste your money.
Mobile620096,
Sep 10, 2025
- Review from Tripadvisor
2.00We were very disappointed. If you think you might see what is depicted even a little bit while on the excursion... You will be very disappointed. Plus, they don't tell you that the whole area is infested with mosquitoes. This is the biggest waste of money. Look at the photos instead of spending over $150 and getting bombarded with mosquito bites.
Great excursion
AngelaB670,
Aug 20, 2025
- Review from Tripadvisor
5.00This was a very cool excursion. The crew was awesome definitely enjoyed. The boat was nice and very clean. The boat ride was very smooth.
Very informative and...
Steve M,
Aug 16, 2025
- Review from Viator
5.00Very informative and enjoyed the experience …. the guides were great and made the trip fun for the entire group
Great time!
Thereza R,
Aug 4, 2025
- Review from Viator
4.00Sugar Sugar Bear and his crew were very helpful and funny. They really made the evening enjoyable! Really enjoyed the experience! Take bug spray. We got eaten alive at starfish point, but it was really cool seeing the starfish. As for the bioluminescence, make sure you go on a new moon to really see the bioluminecence at its best.
Canceled trip without notice
Allison T,
Aug 3, 2025
- Review from Viator
1.00Canceled my trip without telling me. Had me confirm my trip the day before and took my money. Terrible experience highly do not recommend.
Once in a lifetime
Jennifer M,
Aug 1, 2025
- Review from Viator
5.00It was an amazing experience. My family truly enjoyed it. The crew was fantastic. Very knowledgeable and friendly. It is definitely a once in a lifetime opportunity.
From US$149.00
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Operated by Cruise Port Adventures