Chuandong Tiankeng.

Zengjia Mountain Chuandong Temple, also known as Chuandong Tiankeng, is located in Guangyuan City, Sichuan Province. Zengjia Mountain has a unique geological landscape and is known as the "Kingdom of Karst Caves" and the "Hometown of Stone Forest Caves". The unique karst landform is quite spectacular, and the scenic spots in the area are beautiful, which is amazing. The sinkhole is about 40 meters high and the area in the pit is about 3,000 square meters. There are 12 large and small funnels in the cave, which include various types. It is a natural funnel museum. Among them, the largest Feitian Palace is a world-class large funnel with a volume of about 16 million cubic meters. The most beautiful moment of Chuandong Temple is when the sun shines down. Unfortunately, the weather was not good. We arrived on a cloudy day and missed the interlacing of light and shadow, leaving a little regret. Zengjia Mountain is one of the top ten summer resorts. The ticket is 50 yuan per person.