Do as we always do- bring your own supply and take the stuff out of the fridge. I brought on 2 bottles of Crown + 2 12 packs of 7 up. The glasses are furnished, ice and you are set! Then you can buy on board to replenish in between. We were allowed our liquor from the on-board store the next to the last night. If you dont have enough, smuggle thru at ports.