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Atlantis’s Cayman Submarine

The Cayman submarine, by Atlantis Adventures, is bright and friendly and a real submarine — going down a hundred feet (30 meters) below sea-level.

This page is a companion to Grand Cayman underwater with its information on the semi-submersible and other ways to get underwater, without getting wet.

The submarine does day and night tours of the reef. We chose the night dive and it’s different, particularly when they turn out the lights so you can appreciate darkness at 100 ft below. You also get a chance to see the bioluminescence from millions of tiny sea creature that produce their own light — an idea for our scientists to follow up on in the present day efforts to reduce our individual carbon footprints:) 

Cayman Submarine – Voyages and Sights

Cayman Submarine, by Atlantis Adventures

The Atlantis submarine is bright and friendly but it is a submarine so, if you’re claustrophobic, it may not be for you. It seats 48 so it’s a fair size and the atmosphere is relaxed — Das Boot, it’s not. The windows are necessarily smaller because the vessel goes down a hundred feet where the fish are different and more ‘wild’, if that makes sense. We saw Tarpons and Snapper hunting their prey and, to the delight of many on board (I’m a tad squeamish), catching and killing it. We also saw, an Octopus, Lobster, Stingray, among others.

Boarding the Submarine

Cayman Submarine, colorful parrotfish

To see Grand Cayman underwater at night, we lined up for the submarine tied up at the Atlantis dock on the waterfront at George Town. When departure time approached, the crew began getting the boats ready and we passengers began jockeying for position in the line for the best seats. Then the boats, both submarine and tender, left without us, heading out to sea into the gathering darkness! It looked like we weren’t about to go out on the Cayman submarine on this occasion!

Cayman Submarine, Tarpon

Everyone checked their tickets for departure time. I’d have found the whole episode funny if we hadn’t already paid the fare and now seemed to be set for a dispute to get our money back.

The mystery solved itself when, after casting off the submarine, the tender returned for us passengers. Apparently, the submarine can go up and down, and cruises about below the water very well, but needs assistance to go far on the surface.


Grand Cayman Submarine, crab

Transferring from the tender to the submarine is simple and safe, then it’s down into its spacious cabin and enjoy the ride.

Look for Atlantis Adventures, Grand Cayman when you get there and try it out and, in the meantime, visit their site here or our pages underwater pictures and underwater photography for more views to whet your appetite.

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