Lake Tanganyika, Burundi
Pu Cheng/Xinhua via Getty Images
Pu Cheng/Xinhua via Getty Images
According to Africa Travel Resource, Lake Tanganyika used to be a much safer lake to swim in, but recent years have led guides not to recommend doing so. This is partially due to the presence of a nuisance parasite called bilharzia but more immediately due to the risk of crocodile attacks.
Moreover, recent years have seen Lake Tanganyika itself become hazardous as a result of alarming and persistent increases in its water level. According to ReliefWeb, This trend has added floods and landslides to the list of potential hazards here.