5 nautical miles south of Port Sudan, Towartit Reef nestles close to the mainland coast. It is basically a group of reefs consisting of a large number of small individual reefs.
Towartit Reef is 18 nautical miles long in the north-south direction and has a width of 9 nautical miles in the west-east direction. There are no accurate nautical charts of the area and part of the reef group has not yet been charted. This is another reason why it has become a graveyard for numerous ships. Wreck lovers will get their money's worth here.
On several reefs in the north there are sea marks to warn ships of shallows on their way to Port Sudan. One dive site is located just south of the northernmost seamark.
Shielded by a long reef to the east and two small reefs to the west and south, it is possible to anchor there.
On the inside the seabed drops to a depth of 9 to 22 meters. On the outside near the northern tip, the bottom drops steeply to 80 meters.