 The movie was filmed at an actual summer camp, Camp White Pine, in  Haliburton, Ontario (a few hours north of Toronto). Many of the  extras in the film were actual campers and counselors of the camp;  most if not all locations were actual camp facilities (basketball  courts, mess hall, swim docks, cabins, etc.). The "Visitors Day"  scene/montage was actually filmed during the camps Visitors Day;  White Pine also had a similar yearly event to the "Olympiad" 