I do know that I WAY overpacked for him!... That was for sure.. It was one of those things where I was like, well, I want to make sure he has plenty of seasonl clothes, but what if its cold, then what if he makes a mess...Turned out I didn't use half the stuff I had taken for him.
I am not sure where your little one will me when it comes to eating solid foods, but Luke was in the transition between baby food, and soft big people foods, I found that most of the meals had things that he could eat, but I did not figure this out until I had bought a LOT of packaged baby foods. Please keep in mind we were only on a 4 nighter at that time. I can imagine traveling with an infant on a ship for 4 days is much different that for 16 days!.. I think it will all depend on your little one.