Ключевые слова: aerial, aerial view, balkans, bulgaria, canyon, cascade, dam, devin, engineering, environment, europe, forest, geological, gorge, hill, hydro, hydroelectricity, krichim, krichim reservoir, landmark, landscape, leisure, meadow, meander, mountain, natural, nature, panorama, peninsula, plovdiv region, power, reservoir, rhodope, rhodopes, river, rodopi, scenery, scenics, sight, sightseeing, summer, tourism, travel, vacha, vacha river, view, water, wilderness,