The Okavango Delta in northwest Botswana is unique. The annual flood of freshwater that gathers here from Angola's western highlands slowly spreads for more than 5,800 square miles (15,000 sq km) over the Kalahari Desert, forming a maze of lagoons and channels. The thousands of islands that arise sustain several diverse ecosystems, which are home to vast numbers of game and myriad birds, while the champagne-coloured waters support a varied array of aquatic life.
The height of the flood occurs in August each year, and as it recedes in its constant cycle, the delta shrinks. At its lowest level the delta covers about 2,300 square miles (6,000 sq km).
As the flood increases, so does the wildlife that congregates in huge numbers between May and October each year. The delta draws large numbers of animal populations that are rare, such as crocodile, red lechwe, sitatunga, wild dogs, buffalo and wattled crane. The familiar favourites are there in force too, such as various antelope, elephants, giraffe, hippos, lions, and leopards.
Numerous game camps and lodges are located in the Delta, catering to the range of visitors who come to enjoy the teeming flora and fauna. The favoured way to travel through the Delta's channels is on a , a dugout canoe, paddled by a local guide.