As for sightseeing, there's little time for that during their studies at the Olympics, but the students are welcome to stay for a bit on their own afterwards - if,of course, they are not worn out.
VOA: standard.2010.02.26
Says he: "Armchair professors and bureaucrats who sit behind desks pushing a pencil all day can work until age 68 without any serious difficulty, " but manual workers are too wornout by physical labor to stay on the job that long.