I was on the Facination and you'll have a lot of things to do while on board. Prepare to eat yourself silly, for one. You'll get a daily schedule of activities to choose from. There will also be recommended excursions to Cozumel to give you an idea of things to do. Do a google search now to get some ideas.
I spoiled myself with a message on the last day of the trip. The first day might have been better to get into full vacation mode. Getting on the ship is a real cattle car experience so I recommend immediate destressing. Booze will help.
Enjoy!
