A simple hike through the forest to Litzirüti and continuing under the viaduct of Langwies where the Fondei river joins the Plessur river. On this walk you can also follow the themed route "Protection,Forest,Humans" with interesting information about nature hazards, protection forest and humans.
The hike starts at the Untersee lake Arosa on the old Poststrasse. After the first hundred metres you may already enjoy a fantastic view on the reservoir lake, the Schiesshorn and the Furggahörner. The trail continues through the forest along the Plessur river all the way down to Langwies where a short cut leads on a narrow, romantic path under the 62m high viaduct of Langwies. The view from above can be admired from the train on the return journey.