The trickle they call Iguazu Falls

It's big in fact, very big. It spans the border of Brazil and Argentina and when you first approach it from the Argentine side you only see a few small falls, and I was thinking "is this it?" with a feeling of distain. But then as you go further you can see hundreds of cascades in a several kilometer semicircle. The highlight by far though was the Garganta del Diablo ("Devil's throat"), which is a single fall with an enormous volume of water that produces so much mist it is practically impossible to see to the other side from the top and creates a perpetual rainbow in front of its drop. If the Argentine side has the best walks with many different view points to see different falls, the Brazilian side has the panoramic view. From there you can see the entirety of the falls and gives you a much better perspective of the fall in all their grandeur.