in northern circuit offers Tanzania adventure safaris in combination with other parks. It’s home to the vast, volcanic Ngorongoro Crater and “big 5” game (elephant, lion, leopard, buffalo, rhino). Huge herds of wildebeests and zebras traverse its plains during their annual migration. Livestock belonging to the semi-nomadic Maasai tribe graze alongside wild animals. Hominin fossils found in the Olduvai Gorge date back millions of years.