The Iguazú falls are stunning and breathtaking. My wife and I were there last year, it was truly spectacular and not to be missed.
Take a bin bag with you to put your clothes in and keep them dry. Then walk around in your swimming costume. It's hot and humid and there's a lot of spray so you can get soaked, but it's wonderful. When you've finished you have dry clothes to put back on.
Apart from the falls, check out the wildlife.
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