Luzern - Eigenthal - Regenflüeli - Kastanienbaum
Eigenthal, so close to Lucerne (~10 km by bike) that it essentially feels like your backyard. Yet this little valley is remarkably wild, almost feels abandoned despite the little village at the valley entry.
Because of the fog that turns to ice and freezes on all surfaces it hits the trees have to carry tons of frozen water - this is no snow. As soon as the sun hits, the ice falls to the ground and it sounds like shattering glass all around you.