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
(13 Ratings)
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1 star
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
Son_l
Dec 24, 2025
It was an amazing... - It was an amazing experience to see the water light up. I would recommend this to anyone who comes to the Caymans
Review provided by Viator
Karen_g
Aug 3, 2025
Wonderful Excursion - Definitely the highlight of my trip. It was our captain’s first week as a captain and he did a great job.
Review provided by Viator
Natasha_n
Jul 28, 2025
Awesome Experience - Such an amazing tour and Travis was a great Captain/Tour Guide. Swimming the the bioluminescent bay was such a cool experience. Highly recommend. Went on the tour with two adults and two kids, ages 12 and 10.
Review provided by Viator
Magda_c
Jul 28, 2025
Amazing tour and guide! - Our guide was so friendly and informative! Such a beautiful evening spent! Transport was arranged so well and on time! Boat was very clean tidy and comfortable! Bioluminescence was excellent and our guide showed us the ropes to have a enjoyable time! Thank you!
Review provided by Viator
Kristine_d
Jul 9, 2025
Jordan and his boat were fantastic - 10 out of 10 experience! Loved this private tour. Jordan was great and made the trip very special for our family! This was a memory we will have forever! Great communication. Well worth the price!
Review provided by Viator
Marigene_p
Aug 28, 2025
It was ok. The person who took us on the boat was nice - It 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
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).