From EnvironmentalGraffiti:
Far below the Earth’s surface, where the sun rarely penetrates, is a world of twinkling glow worms, precious gems and limestone caves and mountains, a land inhabited by nature alone. Within this world are visions to rival many landscapes decorating our horizon; lakes lie still and calm, great networks of caves know no borders and rivers and rivulets carve an ever-evolving terrain.
We invite you to explore this remarkable subterranean domain through these incredible images we’ve complied for your viewing pleasure.
