Ключевые слова: ancient, balkans, beautiful, beauty, blue, bulgaria, bulgarian, canyon, daytime, dere, destination, devils, discover, europe, famous, geology, grand, green, landmark, landscape, mountain, national, natural, nature, outdoor, outdoors, park, phenomenon, places, river, rock, scenic, sheytan, sheytan dere, sky, spring, springtime, stone, sun, terrain, tourism, tourist, travel, travel destination, view, water, wild, wilderness,