Considering the Mercure Grand International Foz in Foz do Iguaçu?
A VT member wrote the following comment about visiting Foz do Iguaçu:
The Falls by Kittelite
It is so overwhelmingly beautiful, that you will never regret going!
You need to see the falls from both the Brazillian and the Argentine side.
There are several tours to the sight, so shop around to get the deal that suits you best.