This is Cataratas del Iguazù National Park.This is a big national park and it is awesome.Iguazú falls are near the triple border between Argentina, Paraguay and Brazil.They are formed by 275 falls of up to 80 m of height, fed by the flow of the river Iguazú. You can walk along the catwalks, sail a boat under the falls and go trekking along the trails where you can see some animals of the jungle.