Ключевые слова: balkan mountain, beautiful, blue, branch, brown, bulgaria, bush, cloud, cloudy, cold, color, conifer, deciduous, destination, environment, europe, forest, frozen, glade, grass, green, hiking, hill, landscape, light, majestic, mountain, natural, outdoor, peak, picturesque, pine, plana mountain, scene, sky, slope, snow, snowy, stara planina, tall, tile, top, tourism, toward, tree, valley, view, white, winter,