Located in Misiones Province in the Northeastern tip of Argentina and bordering the Brazilian state of Parana to the north, Iguazú National Park, jointly with its sister park Iguaçu in Brazil, is among the world’s visually and acoustically most stunning natural sites for its massive waterfalls. It was inscribed on the World Heritage List in 1984. Across a width of almost three kilometres the Iguazú or Iguaçu River, drops vertically some 80 meters in a series of cataracts. The river, aptly named after the indigenous term for “great water” forms a large bend in the shape of a horseshoe in the heart of the two parks and constitutes the international border between Argentina and Brazil before it flows into the mighty Parana River less than 25 kilometres downriver from the park. Large clouds of spray permanently soak the many river islands and the surrounding riverine forests, creating an extremely humid micro-climate favouring lush and dense sub-tropical vegetation harbouring a diverse fauna.
In addition to its striking natural beauty and the magnificent liaison between land and water Iguazu National Park and the neighbouring property constitute a significant remnant of the Atlantic Forest, one of the most threatened global conservation priorities. This forest biome historically covering large parts of the Brazilian coast and extending into Northern Argentina and Uruguay, as well as Eastern Paraguay, is known for its extreme habitat and species diversity, as well as its high degree of endemism. Around 2000 plant species, including some 80 tree species have been suggested to occur in the property along with around 400 bird species, including the elusive Harpy Eagle. The parks are also home to some several wild cat species and rare species such as the broad-snouted Caiman.