Okavango Delta

Botswana is a very large inland delta formed where the Okavango River reaches a tectonic trough in the central part of the endorheic basin of the Kalahari.
 All the water reaching the Delta is ultimately evaporated and transpired, and does not flow into any sea or ocean.
The area was once part of Lake Makgadikgadi, an ancient lake that mostly dried up by the early Holocene.
Species include African bush elephant, African buffalo, hippopotamus, lechwe, tsessebe, sitatunga, blue wildebeest, Angolangiraffe, Nile crocodile, Southwest African lion, South African cheetah, African leopard, brown hyena, spotted hyena, springbok, greater kudu, sable antelope, south-central black rhinoceros, ...