On this hike you follow the Ötztaler Ache at the beginning in the direction of flow and later upstream. The starting point can vary depending on your mood. However, we start in Längenfeld at the sports center. In front of the campsite, a path leads to the right between an ice skating rink and a small river to a bridge. After crossing it, stay on this path until you reach the road to Oberried. Now cross this street and walk along the Ache to the hamlet of Au. Here you cross the bridge again and go back on the other side of the river to Längenfeld. On the entire route you can enjoy the tranquility and a wonderful view of the Ötztal mountains.