Erg Abu Diab is near Ras Banas. The cone-shaped reef extends to a depth of over 100 meters. It is surrounded by a drop off and can be circled within 30 minutes, if the very often occurring strong current permits.
This spot is typical of the biodiversity of the southern Red Sea, but also known for encounters with large sharks. Often the diver encounters groups of hammerhead sharks, the largest number, which was observed at one time, was more than 50 animals. But the encounter with grey sharks and thresher sharks is most likely and among them, with good luck, a Longimanus.
- Even if the sharks fail to appear, the drop off has a magnificent vegetation and dense shoals of fishes amble along the reef wall.