Ключевые слова: aerial, background, borovets, bulgaria, cirque, clouds, destination, environment, europe, fish, forest, green, hiking, hill, ice, kyustendil region, lake, landscape, mountain, mountain lake, mountaineering, nature, outdoor, panorama, peak, recreation, rila, rila mountain, rila national park, rock, rocks, route, scenery, sight, sightseeing, smradlivoto, stinky, stone, summer, sunny, the stinky lake, tourism, trail, travel, vacation grass, view, water,