The delta is located in the heart of Botswana and is quite a magical place as it changes constantly throughout the year due to the water that flows in and around the area. The area of the delta 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, irrigating 15,000 km of the desert. Each year some 11 cubic kilometres of water reach the delta.