New 7 Wonders of Nature - Iguazu Falls

One of the New 7 Wonders of Nature is the Iguazu Falls also known as Iguacu Falls. The name "Iguazu" comes from the Guarani or Tupi words "y", meaning "water", and "uasu "[waˈsu], meaning "big". The Iguazu River originates near the city of Curitiba. It flows through Brazil for most of its course. Below its confluence with the San Antonio River, the Iguazu River forms the boundary between Argentina and Brazil. 

The border between Brazil and Argentina runs through the Devil's Throat. On the right bank is the Brazilian territory, which has just over 20% of the jumps of these falls, and the left side jumps are Argentines, which make up almost 80% of the falls. The falls can be reached from the two main towns on either side of the falls: Puerto Iguazú in Argentina and Foz do Iguaçu in Brazil, as well as from Ciudad del Este, Paraguay, on the other side of the Paraná river from Foz do Iguaçu. The falls are shared by the Iguazu National Park (Argentina and Iguazu National Park (Brazil). The two parks were designated UNESCO World Heritage Sites in 1984 and 1987, respectively.

During normal flow, Iguazu Falls is actually split into two main parts by the San Martin Island (La Isla San Martín). The part with the largest volume of water is the narrow horseshoe of the Devil's Throat (La Garganta del Diablo). This is the portion of the falls that is split between Argentina and Brazil.