Introduction to Tongzifeng: Tongzifeng is a small stone peak nestled next to Dinghu Peak. It is 40.7 meters high, with sharp tips like bamboo shoots, commonly known as small stalagmites. There is a round hole halfway up Dinghu Peak, like a human belly button. This small stone peak is as high as the navel, resembling a beautiful girl under a loving mother, so it is also called Tongzi Peak.