The Lainsitz, Lužnice in the Czech Republic, has its source here in the Freiwald am Aichelberg near Karlstift at a height of 980 metres. The still small stream flows along the watershed in the direction of the border.
The origin of the Lainsitz at 972 meters above sea level. From here you have a wonderful view of the surrounding nature and - if you want - the long-distance hike "Weg an der Lainsitz" begins.