Yes.
Yes. You'll need to carefully read the terms and conditions, but I expect you will find there is a significant foreign transaction fee on each transaction, in addition to being charged an exchange rate.and if they do accept them, would we get screwed on the conversion factor.
I usually take out enough cash for 3-4 days at a time, and keep enough for each day on my person and the rest in the hotel safe - with my passport.







