Why you should carry hard cash when traveling around Paraguay
Getting ATMs or banks here isn't as easy as compared to most of Paraguay's neighbors. There are very few banks here and most of them are in big cities such as Asuncion and Cuidad del Este.
Visa cards, American Express, Maestro, Mastercard, and Cirrus cards are accepted most of these ATMs.
NOTE: Most people here speak Guarani with Spanish only being used as a second language especially in rural areas so even asking for directions to banks in rural areas was a challenge for me as I barely know any of the two languages.
You'll also have to adjust to the inflation situation that's affecting Paraguay currently and don't be shocked at the numbers.
Currently, 1USD is roughly 6000 Paraguay Guarani, you'll have to work with huge sums.
TIP: Don't bother to get coins, they are literally of no use due to the inflation.