At the corner of the Bergstrasse to Flumserberg, you can go up on the trails and climb to Portels. From Portels the route flattens slightly and continues straight ahead towards Bidbrugg. There are a few steep climbs, but in general it is not a difficult route. After the river crossing, we go diagonally back to the road and descend to St. Peter. From there it goes down steeply, back to Flums

It is also a nice challenge to run the other way around, where you have to climb steeper

View the route and export gpx file: Bildbrugg