Just off the Valor with our 13 month old. We had NO issues using the blow up pool (it was probably 1 foot in diameter) on the sun deck. We just put it inbetween our 2 deck chairs.
FYI - Camp Carnival has under 2 open play time on sea days from 8-10 am. This is not advertised anywhere. We did it on all 3 sea days and we were usually the only ones there.. only on the 2nd sea day did we see another little girl and she was only there for 15 minutes at the time we were.
We did not pack many toys - a toy laptop, a picture book, a few rattles. He really was not too interested in it. I also had a funship Freddy in the room waiting for him when he arrived.. again, not too interested. Toddlers are easy to entertain with empty water bottles and things like that.
We flew in the day of the cruise, rented a car and stopped at Target for diapers, wipes, a bottle brush, dish soap, snacks for him and water. I washed his sippy cups in our sink at night. The snacks were for excursion days, all wrapped/sealed items and we had no issues taking it off the ship. I did a box of the plum smoothies, plum kids grammy sammys and we brought a box of mum mums from home. You can also carry liquids off the ship, so no issues carrying off a sippy filled with juice or water + another water bottle.
He walks and hardly sits still, so during the day we would go into an empty lounge and let him run around for a while in a contained area.
We brought painters tape to tape the drawers shut so he could not open them and take out all of the clothes (one of his favorite pasttimes).
Don't forget his body wash/shampoo since the one in the shower that is provided is harsh for their sensitive skin.
I used a small drawstring pack as a diaper bag that I kept stocked with diapers, wipes, disposable changing pads, mum mums, a sippy and a toy so we could just grab it when we went around the ship.
I very rarely had to change him outside of our room, but when I did.. a changing table was not always available. The only time I ever saw one was in the family/handicap bathroom in Rosie's buffet). There was room on the counters though, so I would lay down 2 disposable changing pads and put a clean diaper under his head for cushion and had no issues.
We had an aft balcony and the sound of the waves helped him get to sleep.. so I would take him out there to nurse him to sleep. The door opened and closed quietly if you held onto it and not let it slam.
The crib they provided was fine.. it had white metal bars and the size was comparable to that of a graco travel crib. They put regular sheets on it, tucked under it.. which worked fine for us, but I have seen people recommend bringing your own sheet. This is not a standard pack and play size though, so I say skip it.. the sheet worked just fine.
The MDR was the worst part of our cruise - 2 hour experience with crappy food. My kid cannot sit still for that long, so it just was not a good fit for us. I found the food in the buffet to be better and the convenience of it couldn't be beat. He is a garbage can and I had no problem finding something for him to eat at any time. Also, there was never an issue getting a highchair in the buffet. They can sometimes be found next to the bus boy station in the back, if not.. just ask one of the crew to get you one and they would be happy to do so.
I did bring bottled water for him, but he also drank the ship's water and was just fine.
It was definitely interesting and awesome traveling with a little one. This was all I could think of right now.. let me know if you have any questions! Have a great cruise.. we saw tons of babies and toddlers on board and no miserable parents in tow
Carnival Triumph - Spring Break Cruise - 2005
Carnival Victory - Birthday/Summer Cruise - 2006
Oasis of the Seas - Group Cruise - 2010