What currency is used in the Celebrity casinos -- we'll be on the Constellation. We got spare cash by taking a cash advance from the casino on our cruise to Alaska and it worked better than the ATMs. If they work in dollars though, it won't be helpful.
They take US Dollars. As a matter of fact, they've rigged the slot machines so that they won't accept Canadian coins - especially since the Canadian dollar has been so devalued. Over there, we got five Canadian quarters for every American dollar.