Ключевые слова: aerial, aerial view, balkan, balkans, bulgaria, bulgarian, canyon, countryside, defile, environment, europe, forest, formations, gorge, hiking, hill, iskar, iskar gorge, landmark, landscape, location, lyutibrod, mountain, nature, outdoor, panorama, ritlite, river, rock, scenic, sight, sightseeing, sky, stara planina, stara planina mountain, terrain, tourism, touristic, travel, trees, trip, view, village, vratsa, vratsa region, water,