Sestriere is a ski resort in Piedmont, Italy, a comune of the Metropolitan City of Turin. It is situated in Val Susa, 17 km from the French border…Sestriere is a ski resort in Piedmont, Italy, a comune of the Metropolitan City of Turin. It is situated in Val Susa, 17 km from the French border. Its name derives from Latin: ad petram sistrariam, that is at sixty Roman miles from Turin.