Ключевые слова: alps, biking, birds, blue, central, clouds, cold, europe, eye, fog, forest, grass, green, grosser, high, ice, lake, landscape, lucerne, mountain, nature, panorama, pilatus, pond, rally, relax, rigi, rocks, scene, schweiz, sea, sky, snow, swiss, switzerland, tranquil, tree, vacation, vastness, vierwaldstattersee, view, water, winter, wood,