Parque das Aves, located in Foz do Iguaçu, Paraná, near the Iguaçu Falls, covers 16 hectares of native forest and is home to 1,500 animals from 140 different species, including birds, reptiles, and mammals. It is a private institution dedicated to the conservation of the Atlantic Forest, research on captive breeding, and the preservation of endangered species. It offers 1,300 meters of trails for bird observation and natural environments for alligators, boas, marmosets, and butterflies.

Cataratas do Iguaçu comprises around 275 waterfalls on the Iguaçu River, straddling Iguaçu National Park in Paraná, Brazil, and Iguazú National Park in Misiones, Argentina, at the border of the two nations. Covering a combined area of 250,000 hectares of subtropical forest, these parks are designated as a World Natural Heritage Site. The Argentine park was established in 1934 and the Brazilian park in 1939, both aimed at managing and preserving the water source and surrounding environment. The parks were recognized as World Heritage Sites in 1984 and 1986, respectively. Since 2002, Iguaçu National Park has been a geological site in Brazil. The first European to find the Iguaçu Falls was Spanish explorer Álvar Núñez Cabeza de Vaca in 1541.