The Red Sea is a seawater inlet of the Indian Ocean; it lies between Africa and Asia. It is one of the warmest, saltiest, and possibly the reddest sea around the world. It contains alga called ‘Trichodesmium Erythraeum’ which turns the original blue-green colour of the sea water, reddish-brown. Hence the sea’s name as the “Red” Sea.
The sea is underlain by the Red Sea Rift, which is part of the Great Rift Valley and it’s home to over one thousand invertebrate species, and two hundred soft and hard corals. It is the world’s northernmost tropical sea. The Red Sea is one of four seas named after common colours — the others being the Black Sea, the White Sea, and the Yellow Sea.