Bioluminescent Bay Adventure in Grand Cayman
Overview
Join us for an unforgettable evening as you witness millions of tiny plankton illuminating the waters at night. This unique boat tour gives you the chance to experience Cayman’s famous Bioluminescent Bay from the boat or take an optional evening swim in the glowing waters.
Our adventure includes two incredible stops: first, visit Starfish Point around sunset, where you can see the island’s famous starfish in their natural environment. Then, head to Bio Bay, where every movement and splash brings the water to life with a remarkable glow.
Experience this rare natural phenomenon up close with a local crew that knows these waters, and discover one of the most unique experiences Grand Cayman has to offer.
Don’t miss this unique adventure — it’s a must-do on your Grand Cayman getaway!
What's Included
- Water and fruit punch
- Snorkeling equipment: mask, snorkel & life vest
- Cayman Islands Marine Park Entrance Fees
- Certified captain and crew
- Roundtrip Transportation from Seven Mile Beach hotels
- Bioluminescent Bay boat tour
- Starfish Point visit
- Snacks
- Gratuities
- Transportation outside the Seven Mile Beach area
Meeting and Pickup
Hotel Pickup: Complimentary pickup is available from participating Seven Mile Beach and George Town accommodations. Please provide the full name of your accommodation at the time of booking. Your exact pickup time and instructions will be provided after booking.Hotels Outside Seven Mile Beach & George Town: Your meeting point will be Kaibo Dock. Your exact meeting time will be confirmed after booking.If you did not provide your accommodation details at the time of booking, your meeting point will be Raleigh Quay Private Dock.
This activity ends back at the meeting point.
Detailed check-in instructions, including the exact address, are provided with your booking confirmation.
What To Expect
Book Online
Safe & secure Easy breezy Hassle‑free
Starfish Point
1 hour 30 minutes Admission Ticket Included
Bioluminescent Bay
1 hour 30 minutes Admission Ticket Free
Additional Info
- Confirmation is instant and will be received at time of booking
- Wheelchair accessible
- Not recommended for travelers with spinal injuries
- Guests must be able to board and exit the boat. This tour is not wheelchair accessible.
- Suitable for all physical fitness levels
- Infants and small children can ride in a pram or stroller
- Infants are required to sit on an adult’s lap
- Flotation devices for children under age 3 are not available
- Travelers must bring their own towel
- Tour start times may vary seasonally to ensure you have the best experience possible.
- The total tour time includes travel, with the Bioluminescence Tour lasting 2 hours from dock to dock.
- Images are for illustration only; your actual experience may vary, highlighting the enchanting unpredictability of bioluminescence.
- Tours are scheduled around moon phases, so availability may change.
- Late Arrivals / No-Shows: Guests who arrive late or fail to show up for their scheduled activity are not eligible for a refund.
- If hotel information is not provided at the time of booking, the standard meeting point will be Raleigh Quay private dock.
- Swimming in Bioluminescent Bay is optional. Guests may also enjoy the bioluminescence from the boat.
- Starfish and other marine life are observed in their natural environment. Wildlife sightings, proximity, and quantities cannot be guaranteed.
- This experience takes place on open water. Wind, currents, visibility, and sea conditions can vary, and the captain may adjust the experience when necessary for safety.
- If you plan to swim in Bioluminescent Bay, avoid applying lotions, oils, or other products immediately before entering the water, as they may affect the sensitive ecosystem.
- You are welcome to bring your own beverages and snacks, but glass bottles are not permitted.
- Bring a swimsuit, towel, comfortable clothing, and a change of clothes if you plan to swim.
- This tour operates rain or shine. Please check the forecast and dress appropriately for the day’s weather.
- Bioluminescence is a natural phenomenon and its intensity can vary from night to night depending on environmental conditions. Photos are taken with professional cameras under optimal conditions and may appear brighter than what is visible to the naked eye.
- This tour/activity will have a maximum of 35 travelers
Frequently Asked Questions (8)
Q: Will I get seasick on Bioluminescent Bay Adventure in Grand Cayman?
Cancellation Policy
Still have questions?
We're here to help.
Activity code: C-420655P12
Traveler Photos
Reviews
Average 4.14 out of 5 stars based on 28 traveler reviews collected by Cool Shore Excursions and partner sites such as Cool Destinations and TripAdvisor
Additional Info
Similar Tours & Activities
Three completely different sides of Grand Cayman. One unforgettable Caribbean adventure. Step into the warm, crystal-clear waters of Stingray City, where majestic southern stingrays glide...
$119
Get Anchored
Guided boat and bus tours to the islands best attractions: • Stingray Sand Bar • Starfish Beach • Coral Gardens • Barrier Reef • Kaibo...
$800
Private Bioluminescent Bay Tour
There are only a handful of bioluminescence or bioluminescent bays in the Caribbean, and not many more than that in the world. They only occur...
$675
Avoid the crowds and join us for 4 1/2 hours on your own private boat and crew to get the experience of a life time...
$1,200
Three completely different sides of Grand Cayman. One unforgettable Caribbean adventure. Step into the warm, crystal-clear waters of Stingray City, where majestic southern stingrays glide...
$119
Guided boat and bus tours to the islands best attractions: • Stingray Sand Bar • Starfish Beach • Coral Gardens • Barrier Reef • Kaibo...
$800
There are only a handful of bioluminescence or bioluminescent bays in the Caribbean, and not many more than that in the world. They only occur...
$675
Avoid the crowds and join us for 4 1/2 hours on your own private boat and crew to get the experience of a life time...
$1,200
Travelers Who Bought This Tour Also Bought
Avoid the crowds and join us on your own private boat with crew for an experience of a life time, from seeing the stingrays at the...
$600
Stingrays, Starfish and Snorkeling Tour
A more exclusive that is being offered on our motor catamaran. This tour has been really getting great reviews! With 26 people on average, it's...
$80
Nature- Using glass bottom kayaks, we launch directly from the Cayman Islands Yacht Club into a vast network of mangroves and waterways. You'll be introduced...
$129
Discover quiet coastal paths and secluded mangrove forest trails as a professional Naturalist introduces you to the tropical plants, wildlife, history, and culture of the...
$129
Avoid the crowds and join us on your own private boat with crew for an experience of a life time, from seeing the stingrays at the...
$600
A more exclusive that is being offered on our motor catamaran. This tour has been really getting great reviews! With 26 people on average, it's...
$80
Nature- Using glass bottom kayaks, we launch directly from the Cayman Islands Yacht Club into a vast network of mangroves and waterways. You'll be introduced...
$129
Discover quiet coastal paths and secluded mangrove forest trails as a professional Naturalist introduces you to the tropical plants, wildlife, history, and culture of the...
$129
Frequently Asked Questions (8)
The answers provided below were previously given in response to questions from Cool Shore Excursions customers.
Filter by:
If you have any doubts about becoming seasick on the water, we recommend taking a Dramamine® Motion Sickness Relief tablet the night before your trip. Some people recommend taking it the night before your cruise and then again that morning so you will not feel so drowsy.
Feb 2023- For a full refund, you must cancel at least 24 hours before the tour start time.
- If you cancel less than 24 hours before the tour start time, the amount you paid will not be refunded.
- Any changes made less than 24 hours before the tour start time will not be accepted.
- Cut-off times are based on the tour local time (EST).
- Water and fruit punch.
- Snorkeling equipment: mask, snorkel & life vest.
- Cayman Islands Marine Park Entrance Fees.
- Certified captain and crew.
- Roundtrip Transportation from Seven Mile Beach hotels.
- Bioluminescent Bay boat tour.
- Starfish Point visit.
- Snacks.
- Gratuities.
- Transportation outside the Seven Mile Beach area.
There is no minimum age for this tour, so bring your wee one along for an adventure. This tour requires at least one adult to accompany children..
Apr 2025If a date or time is not listed on the calendar, it’s sold out or unavailable for another reason. Support cannot assist further if a date or time is not on the calendar.
If you find a date and time that works for you, book it NOW because things always sell out at this time of year.
Apr 2025Accessibility information for the Bioluminescent Bay Adventure in Grand Cayman is as follows:
- Wheelchair accessible
- Not recommended for travelers with spinal injuries
- Guests must be able to board and exit the boat. This tour is not wheelchair accessible.
- Suitable for all physical fitness levels
Detailed check-in instructions – including meeting point address, Google map, and parking information – for Bioluminescent Bay Adventure in Grand Cayman will be included in your confirmation email from Cool Shore Excursions. Please be sure to double and triple check your email address is correct at checkout so this important email makes its way to you!
Mar 2024Once your refund is processed, it usually shows on your card statement within 5–10 business days. The exact timing depends on your bank or card issuer.
Want it sooner? When you cancel, choose Receive a refund to my wallet instead. The credit is in your Wallet straight away and is applied automatically at checkout on your next booking when you’re signed in with the same email. You can see your balance any time in My Wallet.
If you paid part of your booking with Wallet credit, that part always goes back to your Wallet. Trip protection isn’t refundable.
Oct 2026What's Included
- Water and fruit punch
- Snorkeling equipment: mask, snorkel & life vest
- Cayman Islands Marine Park Entrance Fees
- Certified captain and crew
- Roundtrip Transportation from Seven Mile Beach hotels
- Bioluminescent Bay boat tour
- Starfish Point visit
- Snacks
- Gratuities
- Transportation outside the Seven Mile Beach area
Additional Info
- Confirmation is instant and will be received at time of booking
- Wheelchair accessible
- Not recommended for travelers with spinal injuries
- Guests must be able to board and exit the boat. This tour is not wheelchair accessible.
- Suitable for all physical fitness levels
- Infants and small children can ride in a pram or stroller
- Infants are required to sit on an adult’s lap
- Flotation devices for children under age 3 are not available
- Travelers must bring their own towel
- Tour start times may vary seasonally to ensure you have the best experience possible.
- The total tour time includes travel, with the Bioluminescence Tour lasting 2 hours from dock to dock.
- Images are for illustration only; your actual experience may vary, highlighting the enchanting unpredictability of bioluminescence.
- Tours are scheduled around moon phases, so availability may change.
- Late Arrivals / No-Shows: Guests who arrive late or fail to show up for their scheduled activity are not eligible for a refund.
- If hotel information is not provided at the time of booking, the standard meeting point will be Raleigh Quay private dock.
- Swimming in Bioluminescent Bay is optional. Guests may also enjoy the bioluminescence from the boat.
- Starfish and other marine life are observed in their natural environment. Wildlife sightings, proximity, and quantities cannot be guaranteed.
- This experience takes place on open water. Wind, currents, visibility, and sea conditions can vary, and the captain may adjust the experience when necessary for safety.
- If you plan to swim in Bioluminescent Bay, avoid applying lotions, oils, or other products immediately before entering the water, as they may affect the sensitive ecosystem.
- You are welcome to bring your own beverages and snacks, but glass bottles are not permitted.
- Bring a swimsuit, towel, comfortable clothing, and a change of clothes if you plan to swim.
- This tour operates rain or shine. Please check the forecast and dress appropriately for the day’s weather.
- Bioluminescence is a natural phenomenon and its intensity can vary from night to night depending on environmental conditions. Photos are taken with professional cameras under optimal conditions and may appear brighter than what is visible to the naked eye.
- This tour/activity will have a maximum of 35 travelers
