Ключевые слова: alpine, alps, beautiful, blue, central, clouds, cold, europe, european, forest, grass, green, high, hill, lake, landscape, lucerne, luzern, meadow, mount, mountain, natural, nature, outdoor, panorama, peak, pilatus, range, reflection, rigi, rural, scene, scenery, scenic, sky, snow, summer, swiss, switzerland, tourism, town, travel, tree, trees, vacation, valley, view, water, white, wood,