No hair wraps on the cruise, either on board or at CC. It's braiding only. They offer either cornrows or regular braids. It's $2 for each cornrow and $1 for each braid. There are beads at the ends of the braids.
I started doing my DD's hairwraps myself. Klutz makes an instruction book with a kit that's very easy to use. You can get it at places like the Discovery Store, or most large bookstores.