Taiji Dong is located on the northern slope of Wudang Mountain, a double scenic spot of nature and humanity. Inside the cave, stalactites are like forests, stone pillars support the sky, stone curtains cascade like waterfalls, and the traces of time, such as water dripping through stone, glow faintly under the blue light. The most shocking is the subterranean river that runs through the cave, the river water is clear as a mirror, reflecting the myriad postures of the stalactites, as if a galaxy is pouring into the earth, making people hold their breath and admire it.