The Zambezi is a river in southern Africa, the continent’s 4th longest after the Nile, the Congo and the Niger. 2,750 km long, it rises in Zambia, makes a short foray into Angola, returns to Zambia, where it delimits the borders with Namibia, then over 400 m with Botswana and then with Zimbabwe. It crosses Mozambique where it empties into the Indian Ocean.