Hike summer boardwalk gäggersteg nature walker switzerland trees forest fire canton bern bern clouds mystical afforestation nature photographer photographer dead tree dead branch dead dried young trees sprouts background epic lichtspiel lighting mood deciduous trees deciduous tree conifers railing quiet people web wood idyllic natural reserve nature reserve landscape off the beaten track lonely unique backpack gantric gantrisch area evening light thunderclouds fir branch fir tree lothar