Botswana is a country in southern Africa known for its national parks. The Moremi Game Reserve in northwestern Botswana was the first protected area in the African south to be established by locals before the country's sovereignty and independence from Great Britain. They must have been people with vision, because today every schoolchild in Botswana has understood that the unique natural environment is the country's greatest asset. When large masses of water flow from the mountains of Angola into the Okavango inland delta after rainfall, Chobe National Park also expands into a paradise for animals. It is the listed number 1,000 of the UNESCO World Heritage Sites.