Which is the saltiest sea in the world?

The Red Sea, lying between Africa and Asia, is an Indian Ocean seawater inlet. Its connection to the ocean is in the south, through the Bab el Mandeb strait and the Gulf of Aden. The Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez lie to its north (leading to the Suez Canal). The Red Sea Rift, which is part of the Great Rift Valley, underlies it.

The surface area of the Red Sea is approximately 438,000 km2 (169,100 mi2), about 2250 km (1398 mi) long, and 355 km (220.6 mi) wide at its widest point. It has a mean depth of 490 m (1,608 ft), and it reaches its maximum depth of 3,040 m in the central Suakin Trough (9,970 ft).

Due to various high evaporation and low precipitation, the Red Sea is the saltiest body of water in the world; no major rivers or streams flow into the sea, and its southern relation to the Gulf of Aden, an arm of the Indian Ocean, is narrow. The salinity varies in the southern part from ~36% to 41% in the northern part around the Gulf of Suez, with an average of 40%.