Chalk Sound Blue Hole – Providenciales and West Caicos, Turks and Caicos Islands - Atlas Obscura
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Providenciales and West Caicos, Turks and Caicos Islands

Chalk Sound Blue Hole

A 220-foot deep watery drop-off, filled with marine life. 

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The Blue Hole near Chalk Sound, Providenciales, Turks & Caicos is a 400 yard wide, 220 foot deep underwater drop off, popular with sea turtles, sharks, and visiting divers.

“Blue holes” are underwater sinkholes. While relatively rare, there are other examples around the world including the Great Blue Hole of Belize and Dean’s Blue Hole in the Bahamas.

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