Grant High School is a public secondary school situated in Mount Gambier, South Australia.StudentsGrant High School has around 640 students in grades 8–12. The school's area rival is Mount Gambier High School.FacilitiesGrant High School has many great facilities: a big library, two large sports ovals, a sufficient computer room, and a nice-sized gymnasium.Athletic programsGrant High School is big on sport. Their main sporting focus is on cricket, Australian rules football, baseball, netball, basketball, and soccer. A few years ago, a group of their baseball students went to Perth, Australia to compete in a national competition.