The currency in Ibiza Town is the Euro, so it’s easily available if you want to sort out your holiday money before you go. It’s usually cheaper to buy your currency ahead of your holiday than to change it at the airport or when you get there, so it’s well worth popping into your local branch of Thomas Cook or ordering online. You might also find the Thomas Cook Cash Passport is a great option for you, as you’ll get extra flexibility and security than with cash or traveller’s cheques.