Ключевые слова: aerial, aerial view, baykalsko, birds, blato, bulgaria, chokliovo, chokliovo blato, choklyovo, choklyovo swamp, countryside, drone, ecology, environment, forest, green, konyavska, konyavska mountain, kyustendil, kyustendil region, lake, land, landmark, landscape, mountain, national park, natural, nature, outdoors, pass, pollution, region, river, rural, scenic, sightseeing, spring, swamp, tourism, travel, tree, view, water, wilderness, wildness,