Spectacular view almost vertical down in the canyon of the Zügen gorge. Between the 450 m long Wiesen I tunnel and the 969 m long Bärentritt tunnel on the line from Filisur to Davos, there is a gap of only few more then 10 meter, where the passengers have a glimps of less then 1 second daylight, when the train cross the bridge over the creek, which fall down to the Zügen gorge. "Allegra" ABe 8/12 # 3507 is crossing the bridge.
