
Cayman Bioluminescent Bay Night Tour
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September 2026
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Adults
Age 13 and over
Children
Age 12 and under
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Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
5.0/5
Based on 1 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is Cayman Bioluminescent Bay Night Tour worth booking?
Cayman Bioluminescent Bay Night Tour is a 3-hour experience in Grand Cayman, Cayman Islands, from $134 per person. It scores 58 out of 100 on the Outty Ranking, which we label “Worth a Look”, based on a 5/5 rating across 1 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 58 / 100
- Rating
- 5/5 (1)
- Duration
- 3 hours
- From
- $134 per person
Witness nature’s glow in Grand Cayman’s world-famous Bioluminescent Bay, where millions of microscopic plankton illuminate the water with every movement. This unforgettable evening boat tour invites you to swim among the
What you get
About this experience
Witness nature’s glow in Grand Cayman’s world-famous Bioluminescent Bay, where millions of microscopic plankton illuminate the water with every movement. This unforgettable evening boat tour invites you to swim among the stars—or simply enjoy the glowing display from the deck—as our expert local guides share the fascinating science and stories behind this rare natural phenomenon. The adventure begins at Starfish Point, where you’ll have a chance to explore the calm, shallow waters and discover the curious upside-down jellyfish that call it home. Then, under the night sky, we head to Bio Bay for the main event—a glowing swim you’ll remember forever. Whether you dip in or stay dry, this magical two-stop tour is a must during your visit to Grand Cayman.
What's included
Included
- Water and fruit punch
- Certified captain and crew
- Snorkel set: Fins, snorkel and mask
- Roundtrip Transportation from Seven Mile Beach hotels
- Life vest
- Entrance fee to the Marine Park of Cayman Islands
- In-vehicle air conditioning
Not included
- Gratuities
- Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.
- Snacks
What you'll see and do
Starfish Point
Prepare for an unforgettable island adventure! Your journey begins with a scenic 40-minute drive across Grand Cayman’s breathtaking landscape, heading toward the island’s stunning East End. Next, you’ll arrive at the iconic Starfish Point, one of the Cayman Islands' most beloved sunset spots. As the golden light reflects off the calm, crystal-clear waters, you’ll have the perfect chance to snap incredible photos and soak in the beauty of this serene coastal gem. A must-do experience during your Cayman getaway—relax, explore, and let the magic of the moment take over.
90 minutes here
Bioluminescent Bay
Uncover one of Grand Cayman’s most enchanting secrets in the tranquil waters of Cayman Kai—a glowing bioluminescent bay that comes alive after dark. Guided by local experts, you'll slip into the warm, calm water for a magical swim as millions of microscopic plankton light up around you with every movement, creating a surreal underwater glow. After this once-in-a-lifetime experience, sit back and relax as we take you comfortably back to your accommodation. Share your stories, relive the magic, and enjoy the peaceful ride home. Escape the crowds and dive into a rare natural wonder—this is Grand Cayman like you’ve never seen it before.
90 minutes here
Where it starts and ends
Meeting point
Grand Cayman
Your tour will depart from Captain Marvin's dock, located at Raleigh Quay. Please be here 30 minutes before your trip time. Our driver, who will be wearing a polo shirt with our logo, will call out your name upon arrival. Please note that the driver can wait for a maximum of 5 minutes.
Hotel pickup
Pickup is available for selected locations. Pickup begins about 60 minutes before departure.
Ends at
Your tour will depart from Captain Marvin's dock, located at Raleigh Quay. Please be here 30 minutes before your trip time. Our driver, who will be wearing a polo shirt with our logo, will call out your name upon arrival. Please note that the driver can wait for a maximum of 5 minutes.
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- en
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 15 travelers per booking
- Operated by
- Shore Adventures Tours
Know before you go
- Wheelchair accessible
- Infants and small children can ride in a pram or stroller
- Infants are required to sit on an adult’s lap
- Not recommended for travelers with poor cardiovascular health
- Suitable for all physical fitness levels
- Travelers must bring their own towel
- Please be aware that the tour start time may vary depending on the time of year to ensure the best experience.
- Please note that this natural wonder varies in intensity each night, making every visit uniquely spectacular.
- Total tour time includes travel time, with the actual Bioluminescence Tour lasting 2 hours from dock to dock.
- Tours are scheduled according to moon phases, so availability may vary.
- Please note that images are for illustrative purposes only; your actual experience may differ, showcasing the enchanting unpredictability of bioluminescence.
- Transfer service is available exclusively for accommodations located in the Seven Mile Beach area.
- Flotation devices for children under age 3 are not available
- Late Arrivals / No-Shows: Guests who arrive late or fail to show up for their activity are not eligible for a refund.
Photos






Traveler reviews
1 verified traveler reviews for Cayman Bioluminescent Bay Night Tour. Ratings and reviews provided by Viator and Tripadvisor.
Wonderful experience, the...
Wonderful experience, the crew did not let the rain ruin anything. So glad we didn’t cancel. Loved the evening boat ride to see the starfish and the bioluminescence was amazing
Response from the operator: Thank you so much for your kind review! We’re thrilled to hear you had a wonderful experience despite the rain. Our crew always does their best to make every tour special, and we’re so glad you didn’t cancel—the evening boat ride, starfish, and bioluminescence are truly magical. We hope to welcome you back again soon!
via Viator
Good to know
- Duration
- 3 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Every day
- Price range
- $134 to $154
- Hotel pickup
- Available for selected locations
- Booked in 30 days
- 0
- Verdict
- Worth a Look
Why this scores 58
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Cayman Bioluminescent Bay Night Tour: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Grand Cayman.
How much does Cayman Bioluminescent Bay Night Tour cost?
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Prices start at $134 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Grand Cayman usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does Cayman Bioluminescent Bay Night Tour take?
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Plan for about 3 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Grand Cayman is not rushed.
Is Cayman Bioluminescent Bay Night Tour worth it?
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It holds an Outty Ranking of 58 out of 100, which we label "Worth a Look". That score blends traveler sentiment (5/5 across 1 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Grand Cayman, and how flexible the cancellation terms are.
Can I cancel or reschedule Cayman Bioluminescent Bay Night Tour?
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Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is Cayman Bioluminescent Bay Night Tour suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 3-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book Cayman Bioluminescent Bay Night Tour?
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Around 0 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Grand Cayman can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
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Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Grand Cayman and add a light layer if any part of the 3-hour experience runs outdoors or after sunset.
Where does Cayman Bioluminescent Bay Night Tour start and how do I get there?
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The exact meeting point and directions are on your voucher once you book, and they sit in central Grand Cayman within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Grand Cayman?
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On Outty we rank every Grand Cayman experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Small Group E-Bike Grand Cayman Ecological Half-Day Tour, Stingray City Experience Plus Two Snorkeling Stops on Grand Cayman, Stingray City Experience Plus One Snorkeling Stop. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Grand Cayman?
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Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Grand Cayman?
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Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
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Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
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