Ключевые слова: ancient, attraction, calcite, cave, cavern, caverns, caving, column, dark, earth, erosion, explore, formation, formations, geologic, geological, geology, hall, history, hole, inside, karst, landscape, light, little, mineral, minerals, mountain, national, natural, nature, park, rock, speleological, speleology, stalactite, stalactites, stalagmite, stalagmites, stone, subterranean, time, tourism, tourist, travel, underground, underworld, view, wall, water,