Bio Bay: Caribbean's Glowing Water Experience

Discover the magic of Bio Bay’s glowing waters on a private tour. Snorkel among bioluminescent plankton and witness nature’s light show.

Duration: 2 hours, 5 minutes
Cancellation: 24 hours
Highlights
  • Sea Cayman Boat Charters - Board the boat at a pristine and upscale marina.
    Dock B; Slip 39
  • Bioluminescent Bay - Equipped with snorkeling gear, float in this enchanting bay, captivated as your movements illuminate the water. This dazzling light display is incredible, and with the right timing and conditions, you may even witness the mating glow worms, which appear two to three days after the full moon.
What's Included
  • Carbonated beverages
  • Food for Stingrays
  • Bottled water
  • Life Jackets
  • Use of snorkeling equipment
  • On-board restrooms
What's Not Included
  • Alcoholic beverages
  • Gratuities
Additional Information

There are only a few bioluminescent bays in the Caribbean, and not many more worldwide. These phenomena occur naturally only in specific locations due to the unique conditions required.
The water in Bio Bay is warm and salty, rich in nutrients and seagrass, creating an ideal habitat for special microscopic plankton. These plankton are found throughout…

Location
Cayman Islands Yacht Club
Yacht Drive
Dock B Slip 39
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.9
(16 Ratings)
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1 star
Machelle_g
Apr 27, 2026
Brilliant Bio Bay!! - This experience was amazing. Jordan was the very best guide! He was wonderful with our 3 kids under 5 and told us all about the area. The boat ride was so much fun, we cranked up “Under the Sea” and “I am Moans” on the Bluetooth. We saw the beautiful sunset from the boat ! We were amazed at the Bioluminescent Bay and the water show from the plankton. The 3 year old made the glowing water shoot out like Elsa did in the movie Frozen. Our son really got the water glowing with his fast movements..This was a sight everyone show see and this is the company to trust!! Thanks Jordan!!
Review provided by Viator
172leezas
Apr 23, 2026
bioluminescent - Very nice experience! I would highly recommend
Review provided by Tripadvisor
Beth_g
Apr 23, 2026
Amazing! - Amazing way to see the bioluminescent bay in small, modern and lovely boat. So few of these bays in the world and the ability to snorkel at night and see the luminescence was amazing. Justin, our captain, was kind and knowledgeable. Definitely recommend!
Review provided by Viator
Therese_a
Mar 21, 2026
Great experience - Our 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.
Review provided by Viator
Kelly_m
Mar 11, 2026
Bioluminescence tour - Great tour and boat ride. Jordan was informative and very helpful with the kids. The family had a wonderful time.
Review provided by Viator
Stacey_b
Feb 19, 2026
Amazing experience! - We 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!
Review provided by Viator
Jennifer_w
Jan 17, 2026
It was a great... - It 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.
Review provided by Viator
Jennifer_b
Jan 12, 2026
Absolute MUST DO!! Wonderful!! - THIS 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
Review provided by Viator
Nan_j
Dec 26, 2025
Great experience - Our tour guide is very friendly, thoughtful, and experienced. Highly recommend this tour as opposed to group tours
Review provided by Viator
Kristin_s
Dec 25, 2025
Unique Experience - It 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!
Review provided by Viator
From $600 (Per Boat)
up to 15 guests
1 - Traveler
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).