These falls are located between Argentina and Brazil. There are many walkways in the Iguazu National Park, a ferry and a train that brings you to the main attractions (like the "Garganta del Diablo"). In the park, you can see a wide variety of typical flora and fauna of this region, like "coati", alligators, "ceibo", toucans etc..
There are also some places to eat and rest and some souvenir stores!
