Parque Nacional Iguazú, Argentina

On the Argentine side of the marvelous falls, this park has loads to offer, and involves a fair amount of walking. The spread-out entrance complex ends at a train station, with departures every half-hour to the Cataratas train station, where the waterfall walks begin, and to the Garganta del Diablo.You may prefer to walk: it’s only 650m along the Sendero Verde path to the Cataratas station, and a further 2.3km to the Garganta. You may well see capuchin monkeys along the way.