As first timers at Iguacu, we'd like to know where is the passport control when walking/driving between the Brazilian and Argentinean sides of the falls. Is it easy to spot or you can't miss it?
Also, it is time consuming to get the day visa? Queues? We'll have a whole day in August. I know it should be off season, but it will be on a w/e.
Thanks in advance!