I can second most of what others have said, but will add another: searching for hidden Mickeys. We bought the book a while back (it used to be sold onboard, but doesn't seem to be now...), and I've ended up going around with each of my daughters over the years, searching for all of the listed ones. It's been a fun family thing for us, and we've spent several hours over many trips.
I can sympathize with your questions - I'm a super-planner type of person, and didn't know how I'd manage to spend days at sea without an agenda, but there are more than enough things going on (including the option to sleep late or take a nap!) so that I've never been even close to bored.
Finally, I'm hesitant to add this one, but I'll also mention that I've often found myself having to do some work for one reason or another during the trip. While that's obviously not what I want to do while on vacation, I will say that sitting on a lounger where I can stare out at the water is by far the most pleasant way to get that work done! Having the option of doing it on a sea day (vs. in the cabin late at night or something) is really nice.
I can sympathize with your questions - I'm a super-planner type of person, and didn't know how I'd manage to spend days at sea without an agenda, but there are more than enough things going on (including the option to sleep late or take a nap!) so that I've never been even close to bored.
Finally, I'm hesitant to add this one, but I'll also mention that I've often found myself having to do some work for one reason or another during the trip. While that's obviously not what I want to do while on vacation, I will say that sitting on a lounger where I can stare out at the water is by far the most pleasant way to get that work done! Having the option of doing it on a sea day (vs. in the cabin late at night or something) is really nice.