Ключевые слова: aerial, aerial view, arda, arda meanders, arda river, balkans, beautiful, bulgaria, canyon, cascade, dam, engineering, environment, europe, forest, geological, gorge, hill, hydro, kardzhali, kardzhali region, kardzhali reservoir, landmark, landscape, meadow, meander, mountain, natural, nature, panorama, peninsula, power, reservoir, rhodope, river, rodopi, scenery, scenics, sight, sightseeing, terrain, tourism, travel, view, water, wilderness,