mommysharon,
Of course you can stay on the boat! They have all kinds of activities going on all day. I'm looking at the personal navigator from our last cruise and on that day they had the aerobic classes, a princess party, a live character stage show, the chance to ride the segway, basketball, island melodies, a movie and bingo going on, just to name a few. There will be plenty to keep you busy and I guess that the pools will be less crowded!