The crown jewel of Ras Mohammed National Park, where two offshore pinnacles rise from the deep at the very tip of the Sinai Peninsula. Shark Reef drops into electric-blue water teeming with barracuda, jacks, batfish and snapper schools, while Yolanda Reef is scattered with the cargo of the wrecked Cyprus freighter Yolanda — toilets, bathtubs and containers strewn across the sand. A drift along the wall in summer can bring grey reef sharks and immense fish shoals in some of the Red Sea's most exhilarating water.