Ключевые слова: aerial, background, balkan, beauty, blue, bulgaria, bulgarian, cliff, colorful, dawn, day, environment, eye, ezero, fish, forest, green, high, hill, kidney, lake, lakes, landscape, lower, mountain, national, nature, outdoor, panorama, park, rila, rock, scene, scenery, scenic, seven, sky, stone, summer, summit, sunny, sunrise, tear, tourism, travel, tree, trefoil, twin, water,