Iguaçu National Park (Portuguese pronunciation: [iɡwaˈsu]) is a national park in Paraná State, Brazil. It comprises a total area of 185,262.5 hectares (457,794 acres) and a length of about 420 kilometres (260 mi), 300 kilometres (190 mi) of which are natural borders by bodies of water and the Argentine and Brazilian sides together comprise around 260,000 hectares (640,000 acres).[1] Iguaçu National Park was created by federal decree nr. 1035 of January 10, 1939, and became a UNESCO World Heritage Site in 1986. The park is managed by Chico Mendes Institute for Biodiversity Conservation (ICMBio).[2][3]

The park shares with Iguazú National Park in Argentina one of the world's largest waterfalls, extending over some 2,700 metres (8,900 ft). It is home to many rare and endangered species of flora and fauna, among them the giant otter and the giant anteater. The clouds of spray produced by the waterfall are conducive to the growth of lush vegetation.