The Okavango River, the "river which never finds the sea", rises in the Angolan highlands, flows over 1,500 km and passes through Namibia. In northwestern Botswana, the Okavango disappears into a 15,000 km ² maze of lagoons, channels and islands, at its delta. The river system annually brings more than 2 million tons of sand and silt into the delta, yet less than three percent of the water emerges at the other end to either flood Lake Ngami or cross another 500 kilometres of the Kalahari, then to enter Lake Xau and the Makgadikgadi Pans. The Okavango Delta is a 15,000 km ² rich and varied habitat for thousands of mammals, birds, fish and other animals. It sustains tens of thousands of delta residents and a growing eco-tourism industry.

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