Ключевые слова: abstract, adventure, ancient, attraction, background, beautiful, cave, cavern, caving, colorful, column, dark, deep, explore, formation, geologic, geology, hole, holiday, inside, interior, light, limestone, mineral, mountain, national, natural, nature, park, pattern, rock, speleology, stalactite, stalagmite, stone, subterranean, texture, tourism, tourist, travel, tunnel, underground, vacation, view, wall, wet,