The currency in Costa Adeje is the Euro. If you need to get money in resort there are plenty of options for you. Banks are open until mid afternoon and most hotels have a currency exchange facility. To take out any hassle, buy your travel money before you fly. Pop into any Thomas Cook store or go online and it’ll be cheaper than buying it at the airport. Take a look at the Thomas Cook Cash Passport if you don’t know how much money you want to take.