Qingcheng Mountain's back mountain is truly a summer paradise! The streams murmur along the way, the waterfalls in Wulonggou are magnificent, and Cuiying Lake is emerald green. When you get tired, you can rest in the pavilions, enjoying the cool breeze. The stone steps are well-maintained, the signs are clear, and the restrooms are clean. I recommend starting from Tai'an Ancient Town, taking the Baiyun Cableway to the summit, and then hiking down – this saves energy and allows you to see all the highlights. Don't miss the cured pork and fermented rice noodles at the foot of the mountain. It gets a bit crowded on weekends, so I suggest starting early. Overall, a fantastic experience, perfect for a family trip!