Originally Posted by
nerd
No, no exit customs. On the Brazilian side, it's much like Europe even before the current E.U. -- a formal checkpoint but it's "slow down and get waved through", especially if you're with a local driver who makes the crossing 7x/week.
I've seen people just walking through Brazil/Paraguay and Brazil/Argentina land borders, in the Iguazu area (called
tripla frontera).
I had to enter purposely the Paraguay checkpoint of
Ciudad del Este to ask for a stamp into passport, whereas behind me many simply walked along the pedestrian side of the bridge.
Same day, I wanted to spend few hours in Argentina, in
Puerto Iguazu, but the whole passport control of both Countries seemed more a voluntary stop.
I guess something has to do with MERCOSUR agreement (at least for locals).