Getting around in Foz do Iguaçu

So, I am getting the feeling that Foz do Iguaçu is slightly bigger a city than Gramado, so It will be more of a challenge to get from place to place.

We are not renting a car bc we are going to argentina one day (and driving a rental in argentina gets tricky), and we are going to be near our hotel on another day. The airport is a few minutes walk from the hotel as well.

So we figured we are not renting a car for one day and having to worry about parking, etc.

Of course this could all change in a few days. We still have a good 55 days till vacation.

Anyway, this is a good site:

http://www.clickfozdoiguacu.com.br/   - it gives you some information on public transportation at the very bottom of the page.
and so is this:

http://www.visitefoz.com.br/

 this one gives some transportation info


there's also:
 http://www.busbrazil.com/#!buses-from-foz-do-iguacu/c1zy6 

and

http://rodoviariaonline.com.br/rodoviaria/foz-do-iguacu/

 which give you the address to the bus terminal and their phone number.