Tours/Grand Cayman/Grand Cayman - Bioluminescent Bay Tour
Viator · group up to 21 pax

Grand Cayman - Bioluminescent Bay Tour

4.6(363)Grand Cayman1 hour
VIATOR4.6(174)TRIPADVISOR4.5(189)

Description

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 Dock B Slip 43. 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.

Tour Options

Grand Cayman - Bioluminescent Bay Tour

Itinerary

30 min

Swim or snorkel in this magical bioluminescent bay.

30 min

Get knee deep water and observe the red cushion starfish.

Highlights

Water
Life vest
Use of Snorkelling equipment
Snorkel mask

What's included

Included
Water
Life vest
Use of Snorkelling equipment
Snorkel mask
Not included
Gratuities
Transportation to/from attractions
Food and drinks

Traveller Ratings

4.6
363 reviews
5
289
4
32
3
19
2
6
1
17

Important Information

  • 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!

Reviews(363)

D
December_T
June 27, 2026
There is a cooler on...

There is a cooler on board. Bring your drinks and food! Swim under the boat for the best bioluminescent contrast

J
James_M
June 25, 2026
Nighttime swim in Bio Bay

Really a nice adventure once the thunderstorms moved away.. I was wondering if the crew was more interested in completing the trip vs canceling due to lightning but in the end it worked out.

H
Heidi_A
June 25, 2026
Very Cool Experience

So much fun, even in the rain. The bioluminescence was a very cool experience and the captain and crew took good care of us.

M
MZB23
June 24, 2026
family fun

A very fun experience for family with 2 teenagers.

A
Alanna_E
June 22, 2026
The captain and tour...

The captain and tour guide were very nice. The bioluminescence wasn’t very bright, but with nature it always a gamble what you get! Still glad we had the experience.

L
lori_d
June 22, 2026
Wonderful hosts

Really great ride and sweet hosts. The bioluminescence was a bit light but that’s the moonlight. We did have a great trip

C
Chris F
June 20, 2026
Bio bay swim

We weren’t totally sure what to expect on this trip and were pleasantly surprised. Our guides were wonderful and very knowledgeable about the bay and Grand Cayman in general. Half our group stayed on board the boat to watch from above. The other half braved the bay and were not disappointed!! Very cool and totally unique experience that you really have to see to believe. Was really cool to see it underwater with a mask! Magical! Highly recommend!! Wear bug spray- the mosquitos were terrible!

C
Catherine_A
June 20, 2026
Disappointed Bioluminescent

Everything was great except for the actual bioluminescent. We were taken to an area with to much lighting. The lighting came from home that was around us. In order to see a little of the bioluminescent, we had to swim under the boat. Otherwise there was nothing. This was disappointing. Have traveled to other places and I know that it has to be a lot darker. I recommend to you find a darker spot so that customers have a better experience. The crew were great and very helpful.

J
Jared_T
June 19, 2026
Magic Light Show Under Water

So amazing! Went on a fairly dark night and the glow under water is magical! OK, it’s not really a glow - it’s sparkles of individual lights. My wife said it reminds her of the sparkles from a Disney princes wand. Definitely a highlight of our trip! The boat can get a little ocean spray - so if it’s cooler, pack a layer. They guys on the boat were awesome too - loved the playlist in the ride back. It was perfect for our honeymoon adventure!

K
Kfuhrmann4
June 16, 2026
Great tour!

Great experience and wonderful tour guides. They were very knowledgeable and we got to see starfish, jellyfish and the bioluminescence algae. We all loved it especially our two teens.

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