Iguazú Waterfalls, Wonder of Nature Explore Argentina. Iguazú National Park jungle roads lead to a unique site in the world: where birds sing to the beauty of the landscape and nature vibrates with the thunder of the water. Perito Moreno Glacier: the ice thunder Explore Argentina. With closed eyes, it is possible to hear the glacier’s harsh voice. In occasions, it is just a whisper; others, it calls from the deepness. Unpredictable.