The ATM worked fine for me in Peru (Cusco, Aqua Calientes, Puno, Arequipa). I had some cash on me in case of emergency, but for the most part I used my debig card and the ATM machine with no problem. Of course I needed to be mindful that the bank at home charged a service fee everytime I withdrew money.

In Cusco and Lima you won't have problems with ATM availability (although Visa will be the credit card of choice). In the town of Aguas Calientes there are only a few ATMS and I've seen reports that they can run out of cash especially on weekends. I would recommend visiting an ATM before you head there and withdraw enough cash for the entry fee(unless they've changed things, you need to pay it in the local currency). You also need cash for the bus and to buy bottled water. Most larger/upscale hotels, restaurants, stores will take credit card. Some hotels will charge an extra fee for the privelege, some won't. Small mom and pop restaurants and hotels and small vendors will likely only take cash, but often do take US dollars. You'll be able to withdraw USD at the ATMs as well as Nuevo Soles (PEN). Generally I found the equivalent of $100 per person lasted a few days for things like small souveniers, water, local meals, etc.

Ecuador's currency is the U.S. dollar, so that makes things easy for U.S. visitors. As far as any cash you bring to Ecuador, make sure they are bills of $20 or smaller. Nobody will accept $50 or $100 bills for any payment of any amount since there are so many counterfeits in circulation.

One interesting thing you'll see in Ecuador is that there are few $1 bills in circulation. Almost everybody uses the old $1 coins bearing the image of Native American guide Sacagawea. Remember those from several years ago? They never caught on in the U.S., but they must have been all shipped to Ecuador. You'll likely get them in change.

Just got back from a 10K road trip there plus Colombia

www.capitalone.com no FE fee Venture Visa works GREAT

for me everywhere... ATM at big banks only

use for all transactions I can

back up USD in my money belt $20

new no tears not even small tears.

no Debit Cards for me too much risk "skimming"

Lots of couterfeit $50 $100 Peru #1 in the world for this

So be careful... www.travel.state.gov for a heads up.

www.insuremytrip.com always cheap wise...

Did my research carefully had a wonderful safe time...

Happy Journey,

If I have excess soles left, would I be able to exchange it back to US dollars at the airport before leaving?