The Abu Nuhas Reef found close to the north coast of Shadwan Island, is a submerged reef that is now home to five cargo shipwrecks. As a result, this reef has become a well-known wreck dive site in the Red Sea.

The five wrecks can all be visit and include the Giannis D, The Carnatic, Chrisoula K, Kimon M, and the Seastar.

The Giannis D sank in 1983 and now lies at 24 meters with the main engine room lying at around 13 meters. At this shallow depth, the room can be easily penetrated and explored. There are a number of passageways usually home to moray eels and octopus and at the bow of this boat; you can find nudibranchs, gobies, and scorpionfish.

The Carnatic sank in 1869, making it one of the oldest wrecks in the Red Sea. The wreck is 90 meters long, with most of its wooden sections having long disappeared. It now resembles the skeleton of a boat and so divers can dive the whole wreck looking out for nudibranchs amongst the corals and batfish, glassfish, and sweepers in many of the nooks and crannies.

The Chrisoula K sank in 1981 and lies with its bow at 3 meters whilst its stern is at 26 meters. Divers can penetrate the wreck and it has a number of swim through. The wreck is covered in flatworms living in the hard corals, wrasses, triggerfish, and lionfish.

The 120 meter long Kimon M, sank in 1978, and now rests between 15 and 32 meters. It is home to many pipefish species. The fifth wreck at this site, the Seastar, lies at 90 meters and so is only dived by technical divers.