Irrsee 553m, has a water area of 3,5 km² and is a nature reserve. The Irrsee called also Zellersee, and is the warmest lake in the Salzkammergut. The Communities around the Lake are Oberhofen - Zell am Moos - Tiefgraben. Views in direction south to Schafberg Mountain 1.782m. Presented by http://www.sunnhof.at.