Yunshui Caves, or Cloud Water Caves, are located high up in Shangfang Mountain, in the Fangshan National Forest Park in Fangshan district, about 70 kilometers south of Beijing's CBD. The park spans 340 hectares and, during the Eastern Han Dynasty (AD 25-220), Shangfang Mountain became an area of Buddhist activity.
Yunshui Cave is the most famous spot in the Shangfangshan Park. It is the largest karst cave in the Northern China. The cave is about 600 meters deep with 6 natural halls. In the cave, there are 12 peaks and 108 natural scenic spots. "Zhongtian Zhizhu" is the tallest peak with a sea-level of 860 meters. It has the tallest stalagmite in China with the height of 37 meters.
Yunshui Caves are short on the intricate stalactites and stalagmites more commonly seen in Guilin, but rather overloaded with man-made additions: bridges, cement lily pads, a dais of majestically-lit Buddhas, a miniature Great Wall and casino-like multi-colored lighting.