The world's deepest known salt water blue hole, Dean's Blue Hole is a spectacular sight and yours to explore from land or water. A deep abyss plunges 202 m (663 ft) into the ocean's bed within a calm turquoise lagoon, a memorable spot for snorkelling and a beautiful site from the surrounding cliffs. Snow white sands surround the bay and lead to the dramatic underwater drop, its diameter starting at around 30 m (98.4 ft) and after a short descent widening to a cavernous 100 m (328 ft) mouth. Within the twinkling depths, shoals of tarpon, ray, and seahorse play as you make your way through this eerily mesmerising natural wonder. By using our Long Island travel tool, you can arrange your visit to Dean's Blue Hole and other attractions in Long Island.
Dean's Blue Hole reviews
The blue hole was cool but have you seen the beach? It was perfection. We were blown away by the natural beauty of the place. We visited in March so the water was a tiny bit too chilly to swim but... more »
Spectacular. And a great site for a snorkel. Just such a pity about all the plastic...so sad! Nice beach but a bit of a trek to drive there. I wouldn’t recommend walking. Just about doable in a..... more »
Bring snorkel gear and flippers. This beach is worth the drive, and is very nice to hang out at. About a hour drive from the Cape resort. Very easy to find.
An absolutely stunning beach. Great snorkeling too - you NEED to check this out if you are on Long Island!
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