Ключевые слова: background, beautiful, beauty, blue, bright, bulgaria, bulgarian, clear, colorful, ecology, environment, forest, grass, green, horizon, idyllic, lake, landscape, leaf, mirror, mountain, natural, nature, outdoor, park, peak, pond, reflect, reflection, river, rock, scenery, season, shine, summer, sun, sunlight, sunny, sunshine, tourism, travel, tree, valley, vibrant, view, water, white, wood, woods,