Private Tour
Private Bioluminescent Bay Tour
Overview
Available languages
2 hours 5 minutes
Mobile ticket
There are only a handful of bioluminescence or bioluminescent bays in the Caribbean, and not many more than that in the world. They only occur in certain places because they only happen naturally under very specific conditions.
The water in Bio Bay is very warm and salty with an abundance of nutrients and seagrass, the perfect environment for special microscopic plankton. These plankton occur all over the island, and all over the Caribbean, but the concentration we find in Bio Bay is what makes for a fantastic experience. Because of these plankton “bioluminescence,” it produces a very short burst of light when stimulated by movement.
The Bio Bay is best viewed by floating in the water. With snorkeling gear, you’ll float in this magical bay mesmerized as your movements create trails of light in the water. This shimmering light show is awesome, and if the timing and conditions are right, you might even see the mating glow worms which occur two to three days after the full moon.
Additional Info
Infants are required to sit on an adult’s lap
Service animals allowed
Public transportation options are available nearby
Suitable for all physical fitness levels
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
What To Expect
This is where you will hope on board the boat at very clean and upscale marina. Dock B; Slip 39
Bioluminescent Bay
With snorkeling gear, you’ll float in this magical bay mesmerized as your movements create trails of light in the water. This shimmering light show is awesome, and if the timing and conditions are right, you might even see the mating glow worms which occur two to three days after the full moon.
What‘s Included
Soda/Pop
Food for Singrays
Bottled water
Life Jackets
Use of Snorkelling equipment
Restroom on board
Alcoholic Beverages
Gratuities
Pickup points
Select a pickup point
Options
Bioluminescent Bay Charter
Duration: 2 hours: Tour starts after dark and time varies based on guests.
Only goes to Bio Bay
Starting time after sunset
Pickup included
Reviews
13 reviews
Total reviews and rating from Viator & Tripadvisor
Great experience
Therese A,Mar 21, 2026
- Review from Viator
5.00Our whole group loved this excursion! Our captain Jordan was informative and kind (we had 4 children in our group) and we loved the bioluminescence experience! Would definitely recommend the private tour, our group of 8 was very happy.
Bioluminescence tour
Kelly M,Mar 11, 2026
- Review from Viator
5.00Great tour and boat ride. Jordan was informative and very helpful with the kids. The family had a wonderful time.
Amazing experience!
Stacey B,Feb 19, 2026
- Review from Viator
5.00We are a group of 4, on a girls trip. We looked at all the options for the bioluminescent bay tour but most were very expensive just to be on a large crowded boat. The 4 of us were able to book a beautiful and private charter boat with an awesome tour guide and split the overall cost for the same as we would have individually paid with other group charters. The experience was a once in a lifetime and worth every penny. The bioluminescence was so bright and beautiful! I highly recommend this tour. I will be bringing my whole family back to see this and will most definitely use this company again!
It was a great...
Jennifer W,Jan 17, 2026
- Review from Viator
5.00It was a great experience! The pickup was a smooth process and the van was nice. The boat was comfortable and the ride to and from the bay was fun. We all enjoyed making the water glow while we swam in it! Our guide was great and provided interesting facts about the area and what makes the water glow.
Absolute MUST DO!! Wonderful!!
Jennifer B,Jan 12, 2026
- Review from Viator
5.00THIS IS A MUST DO!! Oh my goodness, this is so neat!! We absolutely loved every single thing about this!! It was mesmerizing being in the water and lighting up
Great experience
NAN J,Dec 26, 2025
- Review from Viator
5.00Our tour guide is very friendly, thoughtful, and experienced. Highly recommend this tour as opposed to group tours
Unique Experience
Kristin S,Dec 25, 2025
- Review from Viator
5.00It was so cool that my kids didn't even believe it was real until they moved the water themselves! The driver was nice and the boat was perfect!
It was an amazing...
Son L,Dec 24, 2025
- Review from Viator
5.00It was an amazing experience to see the water light up. I would recommend this to anyone who comes to the Caymans
It was ok. The person who took us on the boat was nice
Marigene P,Aug 28, 2025
- Review from Viator
4.00It was fun. But the pictures you advertised make it seem like a large area is lit up. Not that you have to go in and move to see the colors
Wonderful Excursion
Karen G,Aug 3, 2025
- Review from Viator
5.00Definitely the highlight of my trip. It was our captain’s first week as a captain and he did a great job.
Related Experiences
Operated by Sea Cayman Boat Charters