On a sunny autumn day I made a beautiful hike over the Ducanfurgga. By postal bus I drove from Davos to the Sertig Valley. I started walking in Sertig Sand. 

It is wonderful to hike in the warm sunshine at 2,220 meters.  At the upper end of the Ducan Valley you can see the Ducanfurgga Pass.

See also in German  http://www.hikr.org/tour/post4111.html