pine tree trunk, blue schlegeis stausee lake and alps mountains in background. zillertal, austria, europe

zillertal schlegeis austria stausee view beautiful lake hiking tyrol trekking water travel nature mountain panorama tourism scenery scenic alps landscape peak reservoir rock outdoor viewpoint dam ziller austrian adventure glacier sky white valley summer alpine mountains snow background cold national park ice river outdoors panoramic rocks tyrolean stone summit trail rocky mountaineering europe hike high european environment blue attraction vacation mayrhofen landmark path trip