Red Sea Mystery: Why Does It Turn Red? The Red Sea, a vital waterway between Africa and Asia, spans 438,000 sq. km and is among the world’s hottest and saltiest seas. Bordered by Yemen, Saudi Arabia, Egypt, Sudan, Eritrea, and Djibouti, it connects to the Indian Ocean via the Gulf of Aden and to the Mediterranean Sea through the Suez Canal. Typically blue-green, it occasionally turns red due to algae blooms. Can you name this algae? Comment below! #nextias #nextmaps #currentaffairs #geographythr