It's difficult to put into words the power and majesty of the falls, nor do pictures do it justice. It's just something that you have to experience. Iguazu falls are taller than Niagara falls, and twice as wide with 275 cascades spread in a horseshoe shape.
My kids get a kick out of the "wild life" at the park. We learned real fast that you don't want to feed the Coeti or they won't leave you alone.
Had one climb up my leg once because I gave it an M & M. I had to run down the path to get away from it.
These little snails on the pathway along the falls intrigued me. They were almost iridescent and tiny. My son wanted to collect them, but that wouldn't be "ecologically correct", so I convinced him to let them be.