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Iguazú consists of some 275 separate waterfalls—in the rainy season there are as many as 350—that plunge more than 200 feet onto the rocks below. They cascade in a deafening roar at a bend in the Iguazú River (Río Iguazú/Río Iguaçu) where the borders of Argentina, Brazil, and Paraguay meet. Dense, lush jungle surrounds the falls: here the tropical sun and the omnipresent moisture produce a towering pine tree in two decades instead of the seven it takes in, say, Scandinavia. By the falls and along the roadside, rainbows and butterflies are set off against vast walls of red earth, which is so ubiquitous that eventually even paper currency in the area turns red from exposure to the stuff.
The falls and the lands around them are protected by Argentina's Parque Nacional Iguazú (where the falls are referred to by their Spanish name, the Cataratas de Iguazú) and by Brazil's Parque Nacional do Iguaçu (where the falls go by the Portuguese name of Foz do Iguaçu). The Argentine town of Puerto Iguazú and the Brazilian town of Foz do Iguaçu are the hubs for exploring the falls (the Paraguayan town of Ciudad del Este is also nearby).
Iguazú Falls at a Glance
Elsewhere in Side Trips from Buenos Aires
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