amazing view of riffelsee lake near matterhorn peak mountain, tourist sightseeing way, trail from rotenboden to riffelberg,

riffelsee lake water sky summer travel trekking trail rotenboden nature landscape people view reflection snow mountain blue ice italy vacation europe hiking riffelberg tourist day tourism alps glacier alpine sightseeing peak outdoor zermatt matterhorn landmark gornergrat symbol attraction clear destination european famous scenery panorama panoramic scenic swiss switzerland