Nile (TV series) their mission Speke separated from the main party and discovered Lake Victoria. The vast lake retains water like a vast reservoir with evaporations drained back by surrounding mountains. Speke returned with James Grant a year later and discovered the outlet at Ripon Falls. The new moon rains trigger the emergence of vast breeding swarms of flies that plagued the expedition. Speke and Grant headed downstream from the outlet but were forced to take refuge at Gondokoro. Here they met with Samuel Baker and his wife who had travelled up stream in search of the source and discovered Lake Albert in
Unyamwezi would be held at Tabora, then sent down to the coast in small groups for onward shipment. The first Europeans to reach the region were Richard Francis Burton and John Hanning Speke, who had been sponsored by the Royal Geographical Society and the British government to investigate the great Lake Uniamési said by German missionaries to lie in the region and determine if it was the source of the Nile. Burton and Speke reached Zanzibar on 20 December 1857, visited Johannes Rebmann (who had reported the lake) at his Kisuludini mission station, and paid a visit to Fuga, capital of