If the Argentine side puts you inside the falls, the Brazilian side shows you the whole picture. From the trail you see the full panorama of the falls across the river, ending on a walkway into the spray in front of the Devil's Throat. It takes only half a day, and together with the Argentine side it is one of the best two days of any trip to South America.
History & How Long to Stay
The Guaraní named the falls "big water". The Spanish explorer Álvar Núñez Cabeza de Vaca was the first European to see them in 1541. Brazil's Iguaçu National Park was created in 1939 and became a UNESCO site in 1986. Alberto Santos-Dumont, the Brazilian aviation pioneer, visited in 1916 and pushed for the land to become a public park. Nearby, the Itaipu Dam, opened in 1984 and shared by Brazil and Paraguay, is one of the largest hydroelectric plants in the world.
How long to stay: 2 to 3 days to see both sides plus Itaipu or the bird park.