For me, day two at Iguazu Falls was the best day yet. It was one of the most beautiful places I’ve ever been; I’m so glad we decided to stay a second day.
The Iguazu River forms a border between Brazil, Argentina, and Paraguay, so you have lots of options in this area. We stayed on the Brazilian side, so the first day it was easy bopping around on the local buses to get to and from the national park. Day two we planned to travel to the Argentinian side which meant we had to take the international bus across the border.