Nkasa Rupara (Mamili) National Park

Nkasa Rupara, formerly known as Mamili, is Namibia's equivalent of the Okavango Delta — a vast wetland system of islands, channels, and floodplains formed where the Kwando River spreads into the Linyanti swamps. It is Namibia's largest wetland and least-visited national park. During the annual floods (typically April to August), the park's two main islands — Nkasa and Rupara — become surrounded by water, creating a miniature delta teeming with hippos, crocodiles, lechwe, sitatunga, and enormous concentrations of waterbirds. As waters recede, large herds of buffalo and elephants move in. The park is only accessible by 4x4 during the dry season and is essentially impassable when flooded.