Grand Cayman - Bioluminescent Bay Tour
Overview
Available languages
2 hours 45 minutes
Mobile ticket
Your trek to the bioluminous bay leaves at 5:30 PM in winter months and 6:30 PM in the summer months from the Cayman Island Yacht Club Slip B43. Enjoy a beautiful Cayman sunset on the way to Starfish Point. Bring your own beverage, light dinner or snack to enjoy on the boat or the beach. Coolers and ice water are provided. After leaving Starfish Point we head into the beautiful bio bay and spend 30-45 minutes in the bay. You can swim in the bay wearing a snorkeling mask and life vest or stay on the boat to view this amazing sight. Enjoy star-gazing on your journey back to the dock. You might even see a shooting star on a clear night! Tour is back at the dock by approximately 8:00 pm or 9:00 pm, depending on season and departure time.
All guests are kindly asked to call and confirm their tour with us at least 24 hours prior to tour date. Please know that tours under ten passengers may not run. Thank you.
Additional Info
Infants and small children can ride in a pram or stroller
Public transportation options are available nearby
Suitable for all physical fitness levels
Please call to confirm your tour 24 hours ahead
Children must be accompanied by an adult
Wear bathing suit and bring a towel
Food and drinks are not offered on this tour; you may bring your own sandwiches and beverages.
Ice/cooler and water provided on board
Minimum numbers apply. There is a possibility of cancellation after confirmation if there are not enough passengers to meet minimum requirements. In the event of this occurring, you will be offered an alternative tour date or full refund
Please note your departure and return times vary with the season. It is best to call to confirm your departure so as to not miss the boat!
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
What‘s Included
Water
Life vest
Use of Snorkelling equipment
Snorkel mask
Gratuities
Transportation to/from attractions
Food and drinks
What To Expect
Bioluminescent Bay
Swim or snorkel in this magical bioluminescent bay.
Starfish Point
Get knee deep water and observe the red cushion starfish.
Options
Grand Cayman - Bioluminescent Bay Tour
Reviews
287 reviews
Total reviews and rating from Viator & Tripadvisor
bioluminescent bacteria mansions
stevenfM5463PQ,
Nov 19, 2025
- Review from Tripadvisor
4.00Night time snorkling in a small sea of bioluminescent bacteria in especially salty water. Mansions surrounding the small sea were lit up and spoils the needed darkness. Tour boat capiain showed off expertise by navigating in the pitch dark for 40 minutes or so back to the original pier.
Good tour!
Andrea S,
Nov 16, 2025
- Review from Viator
4.00Good tour. Tour guides were awesome. Bring something to block the water spray as you head out to the first stop. Best seeing with snorkel mask.
Amazing experience. The...
Heather B,
Nov 9, 2025
- Review from Viator
5.00Amazing experience. The guides were knowledgeable and did a great job. The bioluminescent was amazing.
Glow baby glow!
Joy P,
Nov 9, 2025
- Review from Viator
5.00This was such an amazing experience. Everyone should do this at least once. They take you out on a boat to see the starfish then, once it gets dark, they take you to the bioluminescent bay, where the microscopic plankton glow. You have to move around in the water to see it glow but it’s really cool!
Girls birthday 🎂
Deanne T,
Nov 9, 2025
- Review from Viator
5.00Great experience at star fish stop. Lots of star fish to see. The bioluminescent water was beautiful and interesting. Everyone loves the experience
Worthwhile experience
kimwD7940UJ,
Oct 16, 2025
- Review from Tripadvisor
5.00The bioluminescence bay was like nothing I've seen before. It was well organised and a wonderful experience and our guides were very helpful.
Wonderful
Christy K,
Sep 27, 2025
- Review from Viator
5.00This tour was very easy to enjoy. The evening and sunset clouds were beautiful. We saw sea stars and bioluminence. The sparkles in the water was magical. Nylon body suits were provided as protection from jelly fish we couldn't see in the dark. Snorkle gear was provided as well. My mask and hands just shimmered in the lights. This is perhaps a once in a lifetime experience for us, unless we travel back to Grand Caymam, because I would do it again.
Amazing experience!
Lisa C,
Sep 18, 2025
- Review from Viator
5.00This was such an amazing experience! The boat ride itself was enjoyable soaking in the great weather while music played. Holding the starfish was unique, and there were so many to see. The bioluminescent snorkeling/swim was so cool! I wasn’t sure what to expect, but it didn’t disappoint, with the blue glow of the water around us when we moved, and without movement, the water had a glitter effect when looking through the swim mask. Staff were awesome as well. Highly recommend!
We went to starfish...
Kristin B,
Aug 31, 2025
- Review from Viator
5.00We went to starfish island first- perfect temperature. Loved it. Our guides then took us to the bio bay. Good advice to swim under the boat- it was the darkest and best place to see it. Mosquitos were out-thank god our guides brought the bug spray. Loved our adventure. Thanks Aaron! We were allowed to bring our own drinks and snacks too. Kristin and Brian from Atlanta
Worth it
Santosh S,
Aug 29, 2025
- Review from Viator
5.00Amazing experience! Well organized and nice people. They were informative, friendly, helpful and fun!
From US$95.00
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