Great Rift Valley support its current biological variety. The southern section of the Rift Valley includes Lake Malawi, the third-deepest freshwater body in the world, reaching in depth and separating the Nyassa plateau of Northern Mozambique from Malawi; it ends in the Zambezi valley. Great Rift Valley The Great Rift Valley is a continuous geographic trench, approximately in length, that runs from Lebanon's Beqaa Valley in Asia to Mozambique in Southeastern Africa. The name continues in some usages, although it is today considered geologically imprecise as it combines features that are today regarded as separate, although related, rift and fault systems. Today, the
Sinai Peninsula (el-Sewais) is on the southern end of the Suez Canal, Ismailia (el-Isma'ileyyah) in the centre, and Port Said in the north. The largest city of Sinai is Arish, capital of the North Sinai, with around 160,000 residents. Other larger settlements include Sharm el-Sheikh and El-Tor, on the southern coast. Inland Sinai is arid (effectively a desert), mountainous and sparsely populated, the largest settlements being Saint Catherine and Nekhel. Sinai is one of the coldest provinces in Egypt because of its high altitudes and mountainous topographies. Winter temperatures in some of Sinai's cities and towns reach . Sinai was called "Mafkat"