The Okavango Delta (or Okavango Swamp), in Botswana, is the world's largest inland delta. The area was once part of Lake Makgadikgadi, an ancient lake that dried up some 10,000 years ago. Today, the Okavango River has no outlet to the sea. Instead, it empties onto the sands of the Kalahari Desert. The Okavango is home to a prosperity of wildlife and attracts thousands of visitors a year. There are number of camps within the delta region that cater to these visitors. The delta provides a seasonal habitat to numerous different species. Among these are African elephants, the African Buffalo, the Hippopotamus, the Lechwe, the Topi, the Blue Wildebeest, the Giraffe, the Nile crocodile, the Lion, the Cheetah, the Leopard, hyenas, wild dogs, the Greater Kudu, the Sable Antelope, both the Black and the White Rhinoceros, the water monitor, zebras, the Warthog and then chacma baboon. The delta also includes over 400 species of birds, including the African Fish Eagle, the Crested Crane, and the Sacred Ibis.