A huge cavern filled with illuminating crystals, stalagmites and stalactites hang and grow, water dripping exuberantly. Shimmering illuminated the whole of the cavern. A large scatter of wooden towns and castles create an almost detectable hum of noises from nearly a mile away. Many crystal creatures skitter, climb, fly, and swim around, their naturality evident even through their crystalline bodies. Huge vast oceans of lava and crystalline liquids cover as much as the crystal flats, and even such biomes are trumped by the behemoths that move, their own biomes growing on their back. Clearly a great deal of adventures are able to be had here.