Brazil
The first European to see Iguazu Falls was the Spanish conquistador Alvar Nunez Cabeza de Vaca, who stumbled upon them in 1541 while searching for a route between the Atlantic coast and Asuncion. According to local Guarani legend, the falls were created when a jealous deity slashed the river in rage, condemning two lovers to an eternal fall — she transformed into a rock at the base, he into a tree overlooking the precipice. Standing on the walkways that extend into the spray cloud above the Devil's Throat — where 14 falls converge in a thundering horseshoe chasm 82 metres deep and over 700 metres wide — it is easy to understand why the Guarani attributed such violent emotion to this place. Iguazu is not merely a waterfall; it is a geological event, a point where the Iguazu River drops off a basalt plateau in 275 separate cascades spanning nearly three kilometres of cliff face.
Foz do Iguacu, the Brazilian city that serves as the gateway to the falls, sits at the tripoint where Brazil, Argentina, and Paraguay converge at the junction of the Iguazu and Parana rivers. This geographic quirk makes it one of the most culturally layered small cities in South America — a place where three currencies circulate, three languages are spoken in the street markets, and the culinary offerings range from Brazilian churrascaria to Paraguayan sopa paraguaya (a corn bread that is not, despite its name, a soup) to Argentine empanadas stuffed with Mendoza beef. The Marco das Tres Fronteiras, a viewpoint above the river junction, provides panoramic vistas across all three countries simultaneously.
The falls are experienced from both the Brazilian and Argentine sides, and the two perspectives are fundamentally different. The Brazilian side, within Iguazu National Park, provides the panoramic view — a 1.2-kilometre walkway extending along the canyon rim and culminating in a platform that juts into the spray cloud of the Devil's Throat, where the noise is so immense that conversation becomes impossible and the mist soaks visitors within seconds. The Argentine side, accessible across the border, offers intimate encounters with individual cascades — the Upper Circuit walks above the falls' edge, while the Lower Circuit descends into the canyon alongside towers of falling water. Both sides are surrounded by Atlantic Forest that harbours toucans, coatis, and butterflies in the thousands.
Beyond the falls, the broader Iguazu region offers ecological and cultural excursions of real interest. The Itaipu Dam, straddling the Brazil-Paraguay border just upstream, is one of the world's largest hydroelectric facilities — its tour revealing the engineering audacity of a structure that produces roughly 75 percent of Paraguay's electricity. Bird Park, adjacent to the Brazilian national park entrance, houses over 1,400 birds of 150 species in walk-through aviaries, including the hyacinth macaw — the world's largest parrot, critically endangered in the wild. Helicopter flights over the falls provide the ultimate aerial perspective, the full extent of the cascade system visible from above in a way that is impossible from any ground-level viewpoint.
Foz do Iguacu is visited by Tauck on South American itineraries as a land component. The falls are spectacular year-round, but the most dramatic visiting period is during the wet season from November through March, when water volume peaks and the cascade system operates at full, thundering capacity. The dry season from May through August offers lower water but clearer skies, fewer crowds, and more comfortable temperatures for walking the trail system.