We are on the Liberty on 8/23 with 3 16yr old girls the best thing for you to do when you get on board is to go up to camp carnival and sign them up....this then gives her the ability to attend any of the teen events that are on board she does not have to go to them but by signing up she will get her own "capers" that lists just the activities by age group so she will know whats going on and when it will also give her the times that the group will meet to Vote on the teen shore excursions that will be offerd on your cruise (these are shore tours that are headed by carnival staff for just the kid no parents allowed) as well as different all night parties socials and events in the O2 club which is the Teen only dance club and other activities for the week Examples of these are
the all night pizza party
hip hop dance lessons
Ice cream social
pajama party and sleep overs several differnt types of things will be planned these examples are a couple of years old since my daughters last cruise but gives you an idea hope this helps....Pam