The Sertig Valley is located in the municipality of Davos, south of the town, in the Swiss canton of Graubünden. It is a lateral valley of the Landwasser valley. The small village of Sertig Dörfli is accessible by road.
Wikipedia https://en.wikipedia.org/wiki/Sertig
Address 45 Sertigerstrasse, Sertig Dörfli 7272, Switzerland
Coordinates 46°43'31.782" N 9°50'56.695" E