It then flows about  southeast to the Wouri estuary at Douala, the chief port and industrial city in the southwestern part of Cameroon on the Gulf of Guinea. The river is navigable about  upriver from Douala.
The river flows southeast to the Wouri estuary at Douala, which is the primary port and industrial city in the southwestern region of Cameroon near the Gulf of Guinea. The navigable section extends about upstream from Douala.