About Ski schools in Sedrun-Dieni-Oberalp with CheckYetiYou can book with the best-rated ski schools in Sedrun-Dieni-Oberalp: Ski School MONNTAINS Sedrun-Disentis & Swiss Snowboard School Sägerei Sedrun. Choose from 2 offers from 75 CHF and benefit from recommendations by verified customers. Look for offers with "Free cancellation" to stay flexible and take advantage of CheckYeti's 365-day customer support.