Iguazú Falls are arguably the most spectacular in South America – a series of 275 tumbling cascades, which plummet into the turbulent waters of the Iguazú River on the border of Argentina and Brazil. Experience their raw power from above the Devil's Throat, then take to the series of boardwalks that bring you under the falls themselves. You might even catch helicopter to see them from above, or join a boat ride for that obligatory soaking.
Iguazú National Park
Iguazú National Park, of which the Iguazú Falls are the central feature, is a UNESCO World Heritage site. Of course, the falls themselves are the headline act, but the surrounding jungle also offers up some truly memorable experiences. Indeed, it's something of a haven for naturalists, home to around 430 bird species and 70 species of mammals, including capuchin monkeys and rarely seen jaguars. And, no matter where you are, the park rings to a cacophony of calls and songs and the distant thunder of the falls.
Iguazu Falls, Argentina
This 5,200-square-mile region is one of the best places in Argentina to see wildlife, with everything from capybaras and collared peccary to troops of black howler monkeys, which make their homes amid its fertile marshes and sleepy waterways. The landscape here is utterly peaceful – all mirrored lagoons and floating islands known as embalsados – making the wetlands an ecological hotspot for hundreds of bird species, including the rhea – South America's ostrich.
Capybara, Iberá Wetlands