Erg Abu Diab

The dive

Erg Abu Diab is one of several named features around the Abu Diab reef off the Ras Banas peninsula, at the southern end of the Fury Shoals boat range. A Swiss liveaboard operator places it 5.8 km west of Abu Diab itself and about 3 km off the mainland, describes a reef roughly 130 m long, and calls it a wall dive: steep flanks with heavy growth, worked around rather than across. It also records a second name for the same site, Erg Sataya. A German liveaboard operator files the name Erg Abu Diab against a cone-shaped reef near Ras Banas that drops past 100 m, known for large sharks, with heavy growth on the drop-off and dense fish schools moving along the wall.

Those two descriptions are not obviously the same reef, and the naming in this cluster is genuinely unsettled. A German dive tour operator publishes the cone-and-100-m text under the name Gotha Abu Diab, with a depth range of 0 to 100 m, a circuit of the whole wall in about 30 minutes, and reports of hammerhead groups, grey sharks, thresher sharks and occasionally an oceanic whitetip. The dive base at Wadi Lahmy lists Abu Diab and Gotha Abu Diab as two separate sites and does not use the name Erg Abu Diab at all. So the common ground across every source is narrow but real: an isolated erg off Ras Banas whose sides fall well past recreational depth and which is dived as a wall.

What is described consistently is the growth and the fish along it. The Swiss operator names surgeonfish, butterflyfish, lionfish and schools of sergeant majors on the walls, with hammerheads a possibility. The German operator's account is a drop-off with heavy coral cover and dense schooling fish even when the sharks do not show. Treat the shark reputation as belonging to the Abu Diab cone under whichever name your boat uses for it, and confirm on the briefing which of these reefs you are actually being dropped on.

• A wall circuit around an isolated erg rather than a reef traverse
• Heavy growth on the drop-off with dense schooling fish along it
• Surgeonfish, butterflyfish, lionfish and sergeant major schools reported on the walls
• Shark reputation in the Abu Diab group: hammerhead groups, grey and thresher sharks reported at the cone

Conditions

An open-water reef at the southern limit of the Hamata boat range. The German liveaboard operator's site data gives a water temperature of 29 C and recommends a shorty, which reflects the summer safari season rather than the year. No source read for this page gives visibility or a current figure for this reef.

On current: No source read for this page gives a current reading for Erg Abu Diab, and none is guessed here. The 100 m figure describes how far the wall falls, not a dive plan; no source gives a working depth for it. Sources also disagree on the reef itself: one gives a 130 m long wall 5.8 km west of Abu Diab, another a cone dropping past 100 m, and a third publishes that cone description under the name Gotha Abu Diab instead. This page takes the conservative reading that these may be different reefs and that the name is not reliable on its own.