Ключевые слова: ancient, beam, beautiful, buddha, cave, conservation, creativity, dark, darkness, day, deep, depth, discovery, earth, ecological, environment, formation, geology, ground, hidden, hope, idea, imagination, inside, inspiration, landscape, light, limestone, minerals, mysterious, mystery, natural, nature, nobody, outdoors, pattern, ray, rock, scary, stones, sunbeam, sunlight, tourism, tourist, tranquillity, tunnel, under, underground, unusual, wall,