The name is Ungousch not Um Gush, Um Usk or similar spellings suggested on different maps and books. It’s got nothing to do with anyone’s mother. The name comes from Egyptian fisherman slang for restless, the way a school of fish can make a commotion and splashing at the surface. When the fishermen saw the abundance of fish continually breaking the surface in this lagoon and how the nets were almost torn apart by the huge catch they called the reef “Ungousch”. The Reef With The Restless Fish.
This is a big crescent-shaped reef with a sheltered lagoon opening up to the south. On an aerial- or satellite photo it actually looks like a cookie with a bite mark. On the south-west corner of the reef there is a banana-shaped appendix where boats get excellent shelter from wind and waves. The dive can be made from the mooring but during strong current from the north it might be a better idea to drift from a few hundred meters up the reef. Normally the current comes from the north in the morning and from the south in the afternoon. However do not take this as gospel, there is no such thing as “normal” in the Red Sea.
Descending under the boat you will find yourself over a coral covered seabed at a depth of around 18 meters. This might not be the pret tiest coral garden in the Red Sea but it’s excellent to use for navigation purposes. Swim west till you see the first pinnacle.
On route to the second pinnacle you pass a coral ridge that comes down from the main reef. Take your time to explore this area. The two pinnacles and the ridge are covered in deeppurple soft coral and doubles as a dazzling backdrop for the classic Red-Sea-Picture.
At this point it’s probably time to think about getting to a shallower depth and while doing so you swim back to the wall where you turn back. The top of the reef is best and at the very south-east tip of the reef a beautiful little canyon and dramatic overhang make your safety stop worth remembering.
Big thanks to Anders "Samaka" Jälmsjö (https://www.facebook.com/redsea.equalizer) for the site map and description.