Canadians advised that Canadian tourists must pay a US$92 reciprocity fee online prior to their arrival in Argentina. The fee is payable on the Provincia Pagos website at: https://virtual.provinciapagos.com.ar/ArgentineTaxes/ . A printed receipt must be shown to your airline company upon check-in and submitted to immigration authorities upon arrival. Failure to pay this fee in advance may result in refusal of boarding or entry to Argentina and a possible return to your port of origin. The fee is valid for multiple entries until one month prior to the expiry of your passport. Make sure you keep more than one copy of the receipt for your entries.
http://travel.gc.ca/destinations/argentina?utm_source=argentina&utm_medium=travel_en&utm_campaign=mailout_links&utm_content=2014-04-28%2010:34%20am