Dean's Blue Hole

Photo

by Ton Engwirda

/ CC BY-SA 3.0 nl

Dean's Blue Hole, located in Long Island, Bahamas, is one of the world's most famous underwater sinkholes. Plunging to a depth of around 663 feet (202 meters), it is the second deepest known saltwater blue hole on the planet. The site features stunningly clear waters, making it a popular destination for free divers and underwater explorers.

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