This is the official Semiahmoo Secondary School mobile app. PLEASE NOTE: This app is only useful for students, parents, and staff at this school. Subscribe to updates from your teachers and the school, and always have up-to-date event calendars and other information at hand. Other benefits: Push notifications will keep you updated about school closures and other important news. You’ll always have your school calendars and resources on hand and up-to-date. Conveniently e-mail, phone, or nav