I'm still 17 and will probably have this job next year, but this job at this water park near me. Basically, if I had a 2-8 shift, I worked for 1 hour or less (on most days, unless it was very crowded) and laid in the back and listened to my ipod, read a book or played "shedball." It's like wallball, but you use the slanted roof of a shed, obviously, and the ball can't touch the ground or go out of bounds.
Once we had enough time for an epic team tournment, with teams of 2. Normally it's played one on one, we played for a looooong time. Or we drive around in "the cart", it's like a pickup truck golf cart thing.