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 To Expect
Bioluminescent Bay
Swim or snorkel in this magical bioluminescent bay.
Starfish Point
Get knee deep water and observe the red cushion starfish.
What‘s Included
Water
Life vest
Use of Snorkelling equipment
Snorkel mask
Gratuities
Transportation to/from attractions
Food and drinks
Options
Grand Cayman - Bioluminescent Bay Tour
Reviews
316 reviews
Total reviews and rating from Viator & Tripadvisor
Magical!
Caitlin F,Mar 26, 2026
- Review from Viator
5.00Aaron and Peppe were so wonderful! This experience was SO COOL!!! They were informative, funny, warm, and well prepared. We really appreciated the bins on the boat to keep items dry. Being on the boat and visiting starfish bay during the quiet sunset added to the magic. Aaron was also a great photographer and made sure we got the best sunset background haha. The rash guards used were also very stretchy and they had options for all body types and sizes. The best part was swimming under the boat and seeing the bioluminescence really glow! There was plenty of time at both locations and we would highly recommend!
You'll never reviewer anything like this
AdamG608,Mar 25, 2026
- Review from Tripadvisor
5.00This is my fourth time doing the tour over the years. It is my favorite experience I've ever done on any vacation. Highly recommended.
Experience of a lifetime
caolant2019,Mar 24, 2026
- Review from Tripadvisor
5.00One of the best experiences of my life ! Capt. Michael and his team were amazing strat to finish . If you had to pick one adventure in Cayman this is it . Reminded me of the movie Contact at the end where she meets her father .
Amazing!
pete p,Mar 17, 2026
- Review from Viator
5.00It was Amazing! We would definitely do it again. The guides are great and that area is beautiful. It’s a solid family excursion.
Bioluminescence experience feels out of this world!
Nick J,Mar 16, 2026
- Review from Viator
5.00This was well worth the time. Kids were apprehensive about swimming in the dark and unsure what they would see or experience. Best way to describe it is: Blown Away. The boat ride and Starfish Point - fine, acceptable, no problems. But once you walk down the stairs into the bio-bay? Magic. The bioluminescence is incredible. Want big clouds? Wave your hands and feet. Want to see the real magic: go under the hull/tunnel and move your hands slowly in front of your face. The slower you go, the more dramatic the effect of the phytoplankton gets!
Amazing
Odyssey41703528897,Mar 13, 2026
- Review from Tripadvisor
5.00This was an amazing experience! Peppe and Aaron explained everything so well and showed us a good time!
Good trip!
Leslie J,Mar 9, 2026
- Review from Viator
5.00All the ladies in our group had a great time. There were not as many Starfish as usual which was a little disappointing. But the tour guides were quite nice, and we had a great time swimming in the bio bay.
Amazing experience!
colincP3512OZ,Mar 6, 2026
- Review from Tripadvisor
5.00We thoroughly enjoyed our experience! The staff was friendly & helpful. Would highly recommend.
Amazing !
taniafauchon,Mar 5, 2026
- Review from Tripadvisor
5.00Amazing tour! The bioluminescence is mesmerizing, and the guides Pepe and Aaron were fantastic - relaxed and cool, but also ensuring everyone is safe and enjoying the tour. My husband, who wasn’t too excited to go , came back saying it was unbelievable. And my 15yo daughter and her friend also loved every moment of the experience.
glowing time
readysetGO2,Mar 3, 2026
- Review from Tripadvisor
4.00Pepe was a great tour guide, and we had a good time. Try to go when the moon is not as bright, as more light affects how much glowing you'll see!
From US$115.00
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