Calvin Christian School, Providence Christian School and Timothy Christian School are independent Christian elementary schools. Hamilton District Christian High School, Rehoboth Christian High School and Guido de Bres Christian High School are independent Christian high schools in the area. Both HDCH and Guido de Brès participate in the city's interscholastic athletics. Hillfield Strathallan College is on the West Hamilton mountain and is a CAIS member, non-profit school for children from early Montessori ages through grade twelve and has around 1,300 students. Columbia International College is Canada's largest private boarding high school, with 1,700 students from 73 countries.