Ключевые слова: aerial, aerial view, arch, artificial, attention, bergisches land, blue, bridge, brucher, brucher dam, catchment, caution, dam, danger, drinking, drinking water, drone, europe, flood, fly, forest, frozen, germany, gummersbach, high, ice, ice scating, lake, marienheide, nature, partially frozen, plane, protection, reflection, reservoir, season, sky, snow, stability, sunlight, sunny, sunset, swim, talsperre, valley, view, wall, water, weir, winter,