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The Iguaçú River

The Iguaçú river is the largest river in Paraná. Its source is near the Serra (mountain range) do Mar, at the junction of the Ivai and Palmital rivers at the border of the Pinhais, São José dos Pinhais and Curitiba municipalities. It runs 1,320km from East to West.
After the spectacle of the Falls, the Iguaçú river follows its course to its estuary when it meets the Paraná river and forms the magical triple border which is the harmonious relationship among three countries: Brazil, Argentina and Paraguay.

The sources of the Benjamim Constant and Floriano rivers are also inside the park e small permanent rivers such as the Silva Jardim, Caapaço, Represinho, Belo, Gairem, Cruzinho, Coati, dos Índios, Apepu, Apepuzinho, Mingau and São João. The Floriano river is the only Brazilian river that has its entire course inside a national park.