Depending on where you start your Arctic trip, different currencies will be in use: in Norway, the Norwegian krone (NOK); in Iceland the Icelandic króna (ISK); in Greenland, the Danish krone (DKK); and in Canada, the Canadian dollar (CAD). However, you’re unlikely to need much cash as credit and debit cards are generally preferred and widely accepted. If necessary, you can withdraw money at an ATM at your arrival airport before you start your cruise. Normally a tab system operates on board, which you settle at the end of your trip.