The Blue Hole ⛳ 🤿 in Dahab is a famous dive site located on the southeast Sinai, a few kilometers north of Dahab, Egypt, on the coast of the Red Sea. It’s known for being a submarine sinkhole with a maximum depth of just over 100 meters (328 feet). The site features a shallow opening to the sea, known as “the saddle,” and a 26-meter-long tunnel, “the Arch,” which has a ceiling at a depth of 55 meters and a bottom that falls away to about 120 meters on the seaward side. The Blue Hole is popular