Ключевые слова: background, beautiful, cave, cavern, caves, ceiling, dark, deep, den, drip, dripping, fairy, fairytale, fantasy, formation, formations, geology, grotto, hanging, historical, lake, landscape, lime, limestone, mountain, mystical, nature, old, phantasy, prehistoric, prehistory, rock, rocks, scene, scenery, speleology, stalactite, stalactites, stalagmite, stalagmites, stone, stones, tale, tourism, travel, traveling, tunnel, underground, water, wet,