It is here that the Iguazu Falls (Big Water in the local Guaraní language) plunges over hard granite into a wide gorge in a series of gigantic waterfalls two miles in length and more than 240ft below. The sound of the thunderous roar of crashing water and the sight of the multi-coloured mist which rises above the falls combine in an unforgettable experience.
Further south, in the Corrientes province, the wetlands region known as the Ibera marshes - or Esteros del Ibera - is utterly unspoilt and a haven for birding, riding safaris, walking and wildlife. Made up of lagoons, marshlands, and pools, and hugely rich in flora and fauna, the area is a game reserve similar to the Pantanal in Brazil and scenically reminiscent of Botswana's Okavango Delta. Wildlife here includes hundreds of capybara, wild boar, caiman, marsh deer, anteaters, fox, otters and howlers monkeys and thousands of bird species.