Selous is the largest game reserve in Africa. Established in 1922, it covers 5% of Tanzania's total area. The southern area is a forbidden zone that is undeveloped, heavily forested, and contains a series of steep cliffs. Travelers are limited to the area north of the Rufiji River. This area of the Selous Game Reserve has large open grassland, woodlands, rivers, hills and plains. The best time to visit is July through October.
The Rufiji River bisects the Selous Game Reserve and has the largest catchment area of any river in East Africa. The river is an important feature of the reserve providing the opportunity to watch the diverse water-based wildlife. A broad range of game can be found including elephants, hippos and rhinos as well as buffalo, antelope, giraffe, warthog, wildebeest, lion, leopard and cheetah. The diversity of bird life in Selous includes over 350 recorded species.