Ключевые слова: beautiful, caucasus, cave, cavern, clouds, day, daylight, dusk, entrance, evening, exit, fisheye, forest, formation, geological, geology, green, greenery, grotto, inside, lagonaki, landmark, landscape, mountain, natural, nature, observation, outdoor, peaceful, point, rock, rocky, russia, scenery, scenic, serene, shelf, shelter, sight, stone, summer, sunset, tourist, tranquil, twilight, vertical, wild, wilderness, wood,