About 140 km far away from the coast of Safaga and about 88km on the northeast from Port Ghalib. The two islands are surrounded on the perimeter by a barrier reef. These reefs are unique in their location. The isolated position of the islands and their openness to winds, waves and current creates unique conditions for the formation of all kinds of corals. Strong underwater and surface currents are usual here and must be considered. Each diver must be able to use a Surface Marker Buoy (SMB). The speed and direction of the current is very unpredictable. The divers must have a good experience, min. logged dives. Night dives are strictly forbidden. Big Brother the reef slope here nearly vertical rather than a soft incline. Constant currents bring plankton – rich water to feed the numerous kinds of corals. Soft corals of red, claret and blue violet colours begin at depths of 5-6m and cover the reef walls more than 40m. The main sights of Big Brother are two shipwrecks, lying on its southwest slopes.
Numidia the english transport ship with a length of 137m which run aground on the reef and sank at 21.07.1901. It lays at a depth of 7m down to 80m. Now after more than 100 years ago, it’s a wonderful multi coloured reef and often you find here very huge groupers.
The other wreck, Aida, sank on 15.09.1957 and lies on 30m-70m. The metal hull a construction has become a very natural and magnificent part of the coral colonies.