"Independent" activities--Yes, we figure out ways to do some crazy stuff. One of the main things is "Spirit Missions." This is where the freshmen in a squadron plan and carry out some sort of prank. It is better if it is extrememly complicated and funny. One of the better ones in USAFA history had to be when squadron 8 covered the cadet observatory in sheets--painted like an 8 ball. My squad was going to hang a large banner off a "prominent location" during Parent's Weekend, but that got shot down when our Squadron Commander found out (and Gen. Regni's order of "no spirit missions over Parent's Weekend").
Normal fun stuff--Yes, we have some time to do that stuff, but we have to work around our academic/military schedules. Weekends are pretty much open for personal time, so that is when we do the majority of fun stuff.
What do I miss? I miss being able to hang out with my friends whenever I pleased, my music collection, and having much more free time than I do now...and not having to worry if my room is a mess