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Blue Hole

From Openwaterpedia

Blue Hole is a diving location on east Sinai, a few kilometers north of Dahab, Egypt on the coast of the Red Sea. The Blue Hole is a submarine sinkhole, around 130 meters (462.5 feet) deep. There is a shallow opening around 6 meters deep, known as "the saddle", opening out to the sea, and a 26 meters long tunnel, known as "the arch", whose top is at a depth of 56 m (184 feet). The hole and the surrounding area have an abundance of coral and reef fish.

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