Kids Clubs
I traveled with my two children, daughter-age 11, and son-age 14. My son was placed in the young teen age group (12-14) and my daughter in the eldest tween group (9-11). Both enjoyed their times there, although I raise some concerns with the manner in which the 9-11 group is run.
First of all, the kids clubs do not run all day. One of the reasons we went on a cruise is we believed the kids clubs are/were the "greatest things" in the world: that the kids would be occupied the entire time (if we wanted), at no cost, and they would never want to leave. Not entirely true.