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
295 reviews
Total reviews and rating from Viator & Tripadvisor
Beautiful
Natasha T,,Jan 11, 2026
- Review from Viator
5.00We had a little time at starfish point to watch the sunset and see some starfish. Then headed to a cove and got the unique experience with the bioluminescent organisms. Make sure you have someone who will take some videos and pictures from the boat. Very unique. Also enjoyed the stars on the ride back to the marina.
Cool family experience
Global59809723739,,Jan 5, 2026
- Review from Tripadvisor
5.00What a great experience. We swam as a family through the bioluminescent water at night. The kids loved it💕 and we will definitely come back
Family experience, easy and fun
jenniferlE1259KH,,Jan 4, 2026
- Review from Tripadvisor
5.00Lovely trip. This was an easy and relaxing adventure. The pacing was perfect, we felt safe and enjoyed the moment. Our family of three enjoyed visiting with the other passengers on this trip and appreciated the hospitality of the crew. There was very low pressure, lots of support, and we felt completely at ease with the whole event.
This was a fun experience...
Teresa A,,Jan 1, 2026
- Review from Viator
5.00This was a fun experience and a must do while on Grand Cayman. Your operators Dylan and Jose were great and made the trip memorable.
No food or drinks
Kyla H,,Dec 29, 2025
- Review from Viator
4.00This tour was nice but would have been more fun and festive had they served drinks and snacks, as most tours do. The starfish beach was pleasant but only saw 4 starfish. Crew and boat were very nice.
A must do!
Journey50493630555,,Dec 28, 2025
- Review from Tripadvisor
5.00This was one of the coolest experiences of my life. Our tour guide was amazing. He knew so much and his jokes were hilarious. I was highly impressed
Weak sauce
jeff m,,Dec 23, 2025
- Review from Viator
1.00They cancelled 5 hours before we were going to go. They said the boat broke. At least they gave a refund, but it was weak sauce.
Unique experience not to be missed!
Bill M,,Dec 5, 2025
- Review from Viator
4.00Best viewing would be when there isn’t a full moon. The darker the better. We were able to experience the full affect under the catamaran where it was dark. The photos after sunset with the sea stars turned out beautiful! This was a real surprise the me, I didn’t expect such a colourful backdrop! Very friendly and helpful captain and first mate. Would recommend!
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.
From US$115.00
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