Normal
My husband and I took our 5 & 6 year olds on a 10 day cruise on the Summit and they had a ball. I believe the age groups split into 4-6yr olds, 7-9, 10-12, teens. The counselors were fantastic and provided lots of activities for the kids to keep them busy. We loved our vacation because we knew the kids were safe and having fun (they'd cry when we picked them up- they didn't want to leave) and we loved Celebrity and how classy the Summit was and how much fun WE could have by ourselves. We personally weren't comfortable on a Carnival ship because we're pretty mellow and weren't into partying like most people on board, but their kids program is probably fine (we went pre-kids). So I think if you find a ship you're all comfortable with you're sure to have a great time.