Arusha is a city in northern Tanzania and the capital of the Arusha Region, with a population of 416,442 plus 323,198 in the surrounding Arusha District (2012 census). Located below Mount Meru on the eastern edge of the eastern branch of the Great Rift Valley, Arusha has a temperate climate. The city is close to the Serengeti National Park, the Ngorongoro Conservation Area, Lake Manyara National Park, Olduvai Gorge, Tarangire National Park, Mount Kilimanjaro, and Arusha National Park on Mount Meru.