in the suitcase you give to be put on I have had a case of beer in mine. that saved for nights when they stopped serving or for when I was in the room and wanted a beer. No problem. The parents bring liquor all the time you just have to put it in a plastic bottle. Also they won't let you bring liquor but EVERYTIME i have ever brought beer back on the ship they didn't say a word. a group of about 10-15 of us all brough back 1 dollar beers from st. martin and they didn't say a word. Enjoy!