In the Park, the main attraction is the falls of Igua u, itself. In a horseshoe from 2,700 meters wide between Brazil and Argentina, the Falls fill the visitor's view with a spray of the Falls that are 72 meters high - the number of falls varies between 150 and 300 depending on the flow of the Igua u River. The panorama engulfs the onlooker with a sensation of fright, fascination and respect for the perfection of nature. A visit to the Falls and the contact with the wild, water and animals, awake an emotion that many hope to experience once in a lifetime. There, the water of the dammed Paran River houses the flora and fauna protected by the environmental programs of the Itaipu Binacional.
Biological reserves provide a habitat and propagate animals that are threatened with extinction.
In the water, native fish are raised to compense for the disequilibrium caused by the formation of the Lake. The car of environment also has been adapted by the city. To protect nature, all the trees of the city have been cataloged by population.