Sunnydale Adventist Academy (SAA) is a co-educational parochial boarding secondary school operated by the Iowa-Missouri Conference of the Seventh-day Adventist Church. It is a part of the Seventh-day Adventist education system, the world's second largest Christian school systemThe school opened to students in 1946. Sunnydale provides a comprehensive educational program that includes spiritual, academic, and social development. Formerly known as Sunnydale Academy (SA). It is located northeast of Centralia, Missouri in Audrain County, Missouri.