Dahab is famous for it's dive sites like the Blue Hole and The Canyon. The Blue Hole, in the South Sinai desert, a few mile north of Dahab on the Red Sea Coast, is a submarine sinkhole about 130m deep. Because of the high number of fatalities, the Blue Hole is also know as the "World's Most Dangerous Dive Site" or "Diver's Cemetery".
The Canyon dive site is a fantastic dive site for cave and cavern fanatics.

wikipedia.org
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