The only port of call on your cruise with casinos is St. Maarten. The downtown casinos cater to the cruise crowd and are open during the day. Many of the hotel casinos are only open in the evenings or only have table games open in the evenings. If you get any of the free tourist guides, they will list the casinos. It is best to call them first to see if you will be able to get chips during the day. You will need a car to get to the hotel casinos.