Outside the eurozone, there will be additional charges when you use your credit or debit card, make purchases with your bank card or withdraw money from ATMs. A word of advice: before any trip abroad, check the exchange rate between the euro and the local currency of your destination.
Consider using automatic currency conversion websites to familiarise yourself with the local currency. And above all, don’t forget to check whether you can use your bank card abroad and find out whether any limits on your account are enough to cover your holiday expenses.
Enjoy your trip!