NASTC is a performance ski school offering multi-day clinics for intermediate through expert skiers taught by PSIA Demonstration Team members and AMGA ski guides. NASTC offers all-mountain free-skiing clinics at resorts all over the world from Whistler to Squaw to Jackson, and from Portillo to Chamonix. We also offer backcountry skiing skills courses and guided ski mountaineering. We are dedicated to providing upper level skiers with the best instruction at the world’s premier mountains. Since 1994 our adventure ski training vacations have brought skiers like you serious fun and improvement.