Months of waiting made the trip all the more worthwhile. In fact , I would go as far as to say that it's my favourite place that I've been to so far - beating the Taj Mahal, Great Wall of China and the Grand Canyon. There is something so emotional and uplifitng about the life force behind water and it's exaclty that that makes this place so special.
For any visitors I would always recommend the Argentinian side unless you just want a good view. In Brazil, the falls are situated so that you can view them front on allowing you to see how wide they are, but there is not much else to do apart from a boat trip which is cheaper in Argentina. On their side, they really got the lion's share of the falls. There you can take a shower under the falls, take a boat ride around them, hike up san martin island and visit devil's gorge - a truly awesome site.
What to wear and take:
Bikini/swimsuit or bermuda shorts
Waterproof camera case
Water bottle (there are several fountains around the park)
This is a must-see, so make sure you add it into your Brazil or Argentina holidays.