Ключевые слова: ancient, big, boulders, cave, cavern, corridor, dark, darkness, deep, drip, earth, exploration, flowstone, formation, fossil, geologic, geology, gours, hole, inside, jurassic, landscape, limestone, mineral, mountain, mysterious, natural, nature, nobody, old, prehistoric, rock, rough, shapes, speleogens, speleology, speleotheme, stalactites, stalagmites, stone, travel, tunnel, underground, view, wall, wild,