Obviously, we can’t tell you the currency. 

Our recommendation is to bring a credit/debit card that is cheap to pay and withdraw cash abroad (Monzo is always good). 

In the packing list, we’ll let you know how easy it is to pay with a debit/card at restaurants (etc) at your destination, so you’ll have an understanding of how much cash to withdraw when you do get there. We’ll also flag this in your Trip Pack.