Ключевые слова: abstract, ancient, asian, beautiful, bright, camera, cave, cavern, caving, dark, darkness, deep, exploration, female, geologic, geological, geology, hall, inside, interior, landmark, landscape, light, limestone, mountain, mysterious, natural, nature, phetburi, phetchaburi, photo, photographer, professional, rock, scenic, shadow, speleology, staircase, stairs, stalactite, stalagmite, stone, sun, thailand, tourism, travel, tunnel, underground, wall, zoom,