Cacheu is a town in north western Guinea-Bissau, lying on the Cacheu River. Formerly an important ferry port , ferries no longer sail to São Domingos . Roads in the town are paved with oil palm kernels, while notable buildings include a sixteenth century fort, dating from the period when Cacheu was a centre for the Portuguese slave trade.
Other attractions in the town include the Tarafes de Cacheu Natural Park mangrove swamp and a regular market.