When I got in to Puerto Iguazú today, my first order of business was getting myself a Brazilian visa. Everyone from Australia, USA, Canada, and a few other countries needs a visa in order to enter Brazil, even as a tourist (unlike with most countries in South America). I'd head that it's much easier to apply for a visa here in Puerto Iguazú, than it is in Buenos Aires. Well, I can certainly believe that, because it couldn't be much easier up here: the consulate gave me a visa virtually on-the-spot, within just one hour! Plus, they didn't bother to check all those annoying things such as an onward ticket, an address of residence in Brazil, evidence of sufficient funds, etc. So good on ya, guys: in Puerto Iguazú, they make your life easier.