Did the other students take a walk around the campus?
The grounds of Hogwarts were breathtaking, as anyone who had read the novels or seen the movies could attest. Who wouldn’t want to spend their days roaming across grassy meadows, gazing out over snow-capped mountains, and relishing in the splendour of a large lake?
The majority of the students, at least. The only students who actively take advantage of Hogwarts’ spacious grounds are… you guessed it… Ron, Hermione, and Harry, in many moments in the movies. We assume everyone else is studying indoors.