From Biel to Frinvillier you can hike through the breathtaking pigeon hole gorge. On the laid-out hiking trail, which leads past steep cliffs, you experience firsthand how the river rushes through the narrow gorge.
On this section of the route you can cross the Tubeloch Gorge, as it is popularly known. The crossing takes place along the motorway, on a separate pedestrian path. The …
There are two trails through the Büscheligraben, the one below in the trench, which is not accessible for bikes, or this, which leads along the edge of the trench.