Cargo/passenger ferries ply Lake Tanganyika between Kigoma (Tanzania) and Mpulungu (Zambia), calling at various ports including Bujumbura, when political conditions permit. There are normally some ferries to Kalemi (Congo, Dem Rep) and to Kigoma (Tanzania). The MV Mwongozo ferry sails along Lake Tanganyika between Bujumbura and Kigoma. There are three classes. Ferries can often be delayed depending on the cargo being loaded or unloaded.