AST 1 Nov 29 to Dec 1 2019. If you plan on venturing into the backcountry this winter and have not taken any formal avalanche training then this is the course for you. This AST 1 will follow the Avalanche Canada curriculum and the course is designed around a mix of classroom and field time. There is a Friday evening classroom session and Saturday will be a mix of classroom time and outdoor companion rescue training. Sunday is a full day field trip. This course is only open to backcountry skiers or split boarders with at least intermediate skiing/riding skills. No snowshoes are allowed on this course. Participants must be 19 or over.