Hello, Gerald.
Huge thanks for taking the time to join in on the Community and ask a question!
We have a great section on
money in Ireland, which will answer this for you - it has lots of helpful information in regards to currency and the use of credit/debit cards, banking services and more.
Are you visiting anywhere in particular for your trip? It would be great to hear more about your plans and when you are planning to visit.
Excited to hear more,
Colin