Just pulled out the cash for the trip. $800 dollars for the permit, and about another $800 for all the extra's that might happen. Did you know that there are now conversion charges on your credit card when you buy something with your Visa. I am not talking about the conversion cost, I am talking about an additional 3% charge on your card. Amex charges 2.75% on top, just wanted to let you know. This is the reason I am taking all the cash. Thankfully for me I am a bit bigger than the typical South American so I am not too worried about being mugged.