The Selous Game Reserve is one of the largest fauna reserves of the world, located in the south of Tanzania. The reserve covers a total area of 54,600 km² (21,081 square miles), has additional buffer zones and no permanent human habitation or permanent structures are permitted. All (human) entry and exit is carefully controlled by the Tanzanian Game Dept. Some of the typical animals of the savanna (for example elephants, hippopotami, African Wild Dog cape buffalo and crocodiles) can be found in this park in larger numbers than in any other African game reserve or national park. The Selous is one of the last remaining pristine true wilderness areas in the world. Selous offers a large untouched area for the serious safari aficionado who is looking for something beyond traditional mass tourism parks. Walking Safaris are also a must do, Selous offers the only place in Africa one can do a walking safari with an armed game ranger. Selous is one of the best places to see African Hunting dog, with over 3,000 or two thirds of the species residing in the park. The park is also a stronghold for one of the largest herds of elephant in Africa.