The long coast of the Red Sea with its beautiful beaches, its magnificent landscapes underwater and its mild climate attracts vacationers from around the world. Despite its name, the Red Sea is dark blue, which changes to light green near the coast. The name may come from the ancient Egyptians, because it bordered the red earth, the desert. Along the coast there are granite and limestone mountains, with grottos of sand and wide beaches. The Red Sea emerged millions of years ago, when the Arabian peninsula separated from East Africa. Coral reefs are formed for thousands of years by calcareous deposits detached from the skeletons of corals, which can only survive in tropical beaches and bright waters. The Red Sea bustles with life; the abundance of food, the salinity of the water and the high temperatures offer the ideal conditions for more than thousands of species of tropical fish attracted by coral reefs. Among its inhabitants are sea anemones, sea urchins, sponges, dolphins, sea turtles and sharks. Some of these reefs were well-known hazards for sailors, and there are many sunken ships to explore. Dive centers organize boat trips to dive sites, which many consider unparalleled in the world.