The last place I visited was Litoral. It is a region of large rivers ,humid tropics, red earth, and outstanding forest. The air was super thick and muggy. I cooled off when I went to the Iguazu Falls. Wow was it huge and loud! It was unreal. The guide told me that The Iguazu river flows into 275 waterfalls and that because of the sunlight rainbows are formed in the sky. I had a wonderful time and took lots of pictures.