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, and three 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.