obersee lake amidst green hills at eifel national park- germany

nature germany lake water idyllic national park travel outdoor mountain obersee reserve scenery copy space urft dam drinking supply north rhinewestphalia scenics urftsee europe tranquility rursee light plant sunlight sunshine michigan tree eifel sanctuary outdoors landmark journey usa world locations hill day tourism wilderness alpine hiking destination berchtesgaden environment peaceful people reflections green hills park-