We have taken our grandson 2 times, once when he was 5 months on Carnival and last October when he was 22 months on Princess. When he was 5 months we took his stroller to the diningroom at night so he could rest while the rest of us ate, when he was 22 months we mostly did the buffet so one of us could get his food and then take turns. We way overpacked diapers, wipes and babyfood the first time just to be on the safe side, but the 2nd time we knew more what to expect. The second time we took a sit and stroll since it doubles as a car seat and a stroller and was easier to move around the ship with. We are trying NCL this April and we are really looking forward to it. I hope you enjoy your vacation with your baby, my daughter, son-in-law, husband and I have had a wonderful time even though it is a little work at times with a baby, just go with their schedule in mind and relax.