Western Circuit Lake Tanganyika TanzaniaLake Tanganyika is an African Great Lake. It is estimated to be the second largest freshwater lake in the world by volume, and the second deepest, Mahale Mountains National ParkSet deep in the heart of the African interior, inaccessible by road and only 100km (60 miles) south of where Stanley uttered that immortal greeting ìDoctor Livingstone, I presumeî, is a scene reminiscent of an Indian Ocean island beach idyll. Katavi National Park TanzaniaIsolated, untrammelled and seldom visited, Katavi is a true wilderness, providing the few intrepid souls who make it there with a thrilling taste of Africa as it must have been a century ago. Gombe Stream National Park TanzaniaAn excited whoop erupts from deep in the forest, boosted immediately by a dozen other voices, rising in volume and tempo and pitch to a frenzied shrieking crescendo. Lake Victoria TanzaniaLake Victoria (Nam Lolwe in Luo; Victoria Nyanza in Bantu ) is one of the African Great Lakes. The lake was named after Queen Victoria of the United Kingdom, by John Hanning Speke, the first European to discover this lake.