Mosi-oa-Tunya National Park (Sotho: Musi oa Thunya [Mosi wa Tunya] "The Smoke that Thunders"), is an UNESCO World Heritage site that is home to one half of the Mosi-oa-Tunya — 'The Smoke that Thunders' — known worldwide as Victoria Falls on the Zambezi River. The river forms the border between Zambia and Zimbabwe, so the falls are shared by the two countries, and the park is 'twin' to the Victoria Falls National Park on the Zimbabwean side. ‘Mosi-oa-Tunya’ comes from the Kololo or Lozi language and the name is now used throughout Zambia, and in parts of Zimbabwe. Mosi-oa-Tunya National Park covers 66 km2 (25 sq mi) from the Songwe Gorge below the falls in a north-west arc along about 20 km of the Zambian river bank. It fronts the south-western boundary of the city of Livingstone and has two main sections, each with separate entrances: a wildlife park at its north-western end, and the land adjacent to the immense and awe-inspiring Victoria Falls, which in the rainy season is the world's largest curtain of falling water. It extends downstream from the falls and to the south-east along the Batoka Gorges Within the wildlife park is the Old Drift cemetery where the first European settlers were buried. They made camp by the river, but kept succumbing to a strange and fatal illness. They blamed the yellow/green-barked "fever trees" for this incurable malady, while all the time it was the malarial mosquito causing their demise. Before long the community moved to higher ground and the town of Livingstone emerged. ​