McKinnon Park Secondary School is a high school in the town of Caledonia, Ontario. It replaced Caledonia High School for the school year 1992/1993, which was converted into River Heights Public School. The school contains a gymnasium, cafeteria, workshop, library, day care centre, three science labs, twelve portables, an exercise room, music room, drama room, art room, guidance office, and five computer labs. There is a greenhouse in a courtyard located in the east quad. The surrounding grounds contain a baseball field, a soccer field and a football field with a track surrounding it. The fields are used by youth soccer teams during the sport seasons. The school is in close proximity to the new HCCC /library/Lions Hall and baseball diamond. It temporarily served as a home to the new population of River Heights Public School in fall 1991 while renovations and an expansion were created, it also held a "church" congregation as their "church" was being built. This was strange because MPSS is a public school. It is home to the SHSM program offering red seals at graduation in hospitality, green industries, and construction. In the school year 2016–2017, all but two of the schools sports teams won their zones and progressed so SOSSA. Two of these teams progressed to OFSSA. Due to the large number of Indigenous students attending the school, classes such as Cayuga language, native history, and native arts are offered. It also runs the Hockey Canada Skills Academy program at the HCCC during both semesters. There are three types of classes offered in the arts program: drama, music, and art. There are various communications, business and computer programming courses offered along with a full array of maths and sciences. As far as extracurricular clubs, there is the concert band, interact club, both general and executive students council, anime club, drama club, reach for the top, crime stoppers, yearbook, and many others. Sports teams include: lacrosse, badminton, cross country, hockey, basketball, volleyball, soccer, track and field, and tennis. The 2018/2019 academic year saw over 900 students enrolled. The school is home to the largest Indigenous student body in the Grand Erie School District, at 29% or 260 students as of 2018/19. Most of these students come from the nearby Six Nations of the Grand River.
