Sinai trip (Dahab, Blue Hole, Blue lagoon)

The Sinai Peninsula is in Egypt, and the only part of the country located in Asia. It is situated between the Mediterranean Sea to the north and the Red Sea to the south, and is a land bridge between Asia and Africa.
Dahab (Egyptian Arabic: دهب‎, IPA: [ˈdæhæb], "gold") is a small town on the southeast coast of the Sinai Peninsula in Egypt, approximately 80 km (50 mi) northeast of Sharm el-Sheikh. Formerly a Bedouin fishing village, Dahab is now considered to be one of Sinai's most treasured diving destinations.
The Blue Hole is a diving location on the southeast Sinai, a few kilometres north of Dahab, Egypt on the coast of the Red Sea.
The Blue Hole is a submarine sinkhole, with a maximum depth within the hole of just over 100 m (328 feet). There is a shallow opening to the sea around 6 m (20 feet) deep, known as "the saddle", and a 26 m (85 feet) long tunnel, known as "the arch", whose top is at a depth of 55 m (181 feet)[1], and whose bottom falls away as it reaches the seaward side to about 120 m (394 feet).[2] On the seaward side the depth drops steeply to over a thousand metres (3500 feet) deep.