Ключевые слова: alpine, alps, blue, cloud, europe, european, field, grass, green, horizon, lake, lake lucerne, landscape, lucerne, mist, misty, mount, mount pilatus, mount rigi, mountain, nature, outdoor, panorama, panoramic, peak, relax, rigi, scene, scenery, scenic, sky, skyline, snow, steep, summer, swiss, swiss alps, switzerland, tranquil, travel, vacation, vierwaldstattersee, view, water,