Iguazu National Park

Iguazu National Park presents the world's most extensive waterfall system, with 275 cascades spanning 2.7 kilometers—60% larger than Niagara Falls. The thunderous Garganta del Diablo plunges 82 meters, and the park shelters over 2,000 plant species, which is 50% more than the average Argentine park. It ranks second, yet its biodiversity surpasses #1 Los Glaciares, hosting 400 bird species versus the latter's 100.