I didn't want to get onboard and then need to buy cash, I'd rather take it with me. But how do you pay? Do you need £1 coins? $1 bills? Etc. My friend and I have booked a cruise on the Regal Princess and fancied going to the casino, but I'm struggling to understand how it works? I see pictures of fruit machine type games which is I'm sure all we would have a go at. Hi, I am fairly new to cruising and have never used the casino on-board.