Introduction to the first canyon in East China: The canyon is deep and the beach is long. This is a significant feature of the landform of Chengtian Radon Spring Scenic Area, and it is also a unique feature of the landscape of Radon Spring Resort. The Huijiaxi fault valley runs east-west and is 10 kilometers long. Most of the heights are more than 300 meters. The highest place, such as Tuanyu Stone, can be more than 500 meters high, forming a typical "V" and "U" shaped valley. Some experts say This is "the largest canyon in East China".