Introduction to Cangyu Gorge: There is a collapsed boulder at the mouth of Cangyu Gorge. The boulder lies on the right side, forming a deep cave. There is a spring in the mountain stream. The mountain road is built around the boulder. On the left side of the stone wall, there is a stone inscription written by Ma Zhouqing in seal script "Cangyu Gorge". The three words "gorge".