Grand Cayman Bioluminescence Tour Bioluminescent Bay

Have you heard about bioluminescent water? When you are visiting Grand Cayman, you might want to take the opportunity to join this Grand Cayman Bioluminescence Tour to the Bioluminescent Bay, which I did; that was something else!

I loved this trip; swimming in the blue-lighting water was a lot more fun than I thought it would be! This unique snorkeling tour will let you swim in the dark waters and witness the magic of how your movements seem to light up the sea with an internal blue light.

It is not the water glowing, though, but microscopic plankton that illuminates when they are disturbed by you, called bioluminescent plankton.

And let me tell you, this experience is brilliant (pun intended)!

Affiliate disclosure: I only recommend tours, services and purchases I know and love on this website.

What Is Bioluminescent Water?

Swimming in bioluminescent water at night, the water turns bright blue around me when I move in the dark water
Swimming in bioluminescent water

Bioluminescent water is the term used to describe the glowing lights found in the waters and shores of the ocean caused by living organisms emitting a biochemical light.

The blue light shines when the microorganisms are “disturbed” in the water by a boat, swimmer, or snorkeling.

When we move through the water with our hands and feet, it creates a beautiful sparkling and shining blue effect in the water.

You can experience it on this Bioluminescence Tour, starting from anywhere in Grand Cayman.

Grand Cayman Bioluminescence Tour

From a bioluminescent beach in Australia, where the water glows in blue when the waves roll onto the shore at night
A bioluminescent beach in Australia (stock photo)

For this Bioluminescent Tour, you will be picked up at your hotel and transported to the Cayman Islands Yacht Club, where the boat departs.

The boat will take you from the shore to the Bioluminescent Bay in just 20 minutes, where you can jump into the water.

Heading out to the bay in the night after dark, you will see the water light up around other boats in the area.

As you arrive in the bay, the boat will turn off all the lights, and you can see how the boat stirs up the light in the water before it comes to a halt.

When you get in the water, it will be even brighter, like swimming in a blue-lit pool where you can’t see where the lights are.

“Unlike anything I’ve seen before!”

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“Unlike anything Iโ€™ve ever seen before. Great crew that knew the ecology of the region and what to do to keep it pristine. Highly recommended!”
Erin J
April 2023

Snorkeling is, of course, optional; you can stay on the boat if you don’t feel comfortable entering the water.

You will still be able to see the blue bioluminescent lights from the boat (from the other swimmers), but it is ten times as strong in the water with a mask!

What is included:

  • Glistening Waters Luminous Lagoon Night-Time Tour
  • Transportation with an air-conditioned car from your hotel in Montego Bay
  • All Taxes & Fees
Check availability and prices for the bioluminescent tour here!

Also read: 23 Unique Things To Do In Grand Cayman Solo From An Expert

My Grand Cayman Bioluminescence Tour Review

There are blue lit areas behind the dark boat in the night, as the engines stir up the plankton on our way out to the swimming area
The engines of the boat stir up the plankton

For this tour, I was picked up from my hotel in the afternoon for this tour.

The Bioluminescent Bay in Grand Cayman is both a natural phenomenon and a tourist attraction, which means that it does attract a lot of tourists.

So this is a “touristy” tour, where many boats go out at the same time from the Yacht Club, and there will be lots of people there.

The tour and boat crew were experienced, provided guidance throughout the tour, and looked after us while we were in the water.

We were provided with snorkeling equipment for the experience to fully enjoy the beautiful underwater view that is even more stunning than the view from the boat’s surface.

Check availability and prices for the bioluminescent tour here!

“Great Fun!”

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“It was a great experience and a very friendly crew. It is magical, I highly recommend this special experience!”
Donna P
March 2023

I did this tour last year, and it still gets top ratings from travelers this year.

What’s included:

  • Use of Snorkeling equipment
  • Bottled water
  • Soda/Pop
  • Alcoholic Beverages
Check availability for the Grand Cayman Bioluminescent Tour Here!

Bioluminescent Bay Grand Cayman

Swimming in the dark water surrounded by a blue shining light is a magic experinece, no wonder I smile at the camera!
Swimming in glowing water

Wrap-Up Grand Cayman Bioluminescence Tour

This little tour in the Grand Cayman that takes a few hours after dark is absolutely worth it – if you are fascinated by the little tweaks and quirks of mother nature.

The water is warm, and you can feel completely safe with the boat crew despite the dark, and they will never lose you in the water as there will be a blue light around you at all times!

This really is a fun and different tour experience that I recommend you put on your itinerary for Grand Cayman when you holiday here.

Related blog posts:

Spectacular Swimming With Stingrays Grand Cayman!

Best Area To Stay In Grand Cayman From An Expert Traveler

Fabulous Grand Cayman Solo Travel Itinerary | A Complete Guide!

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