There is a reservoir 25 km southwest of Zhuangli, and the construction of this reservoir began in April 1958, during the period of China's Great Leap Forward, and was completed that year with the great assistance of the army.
In honor of the 501st unit of the Chinese People's Liberation Army Railway Corps, which assisted in the construction of the reservoir, the reservoir was named "Bayi Reservoir". The reservoir is mainly used for flood control and irrigation, and the control basin area is about 142 square kilometers. On this basis, the reservoir has been continuously repaired, improved and developed. Dam flood control, seismic reinforcement, danger reinforcement and other work have been carried out successively, and now the flood control standard of the project design is once in a hundred years. Large-scale afforestation was followed to green the environment, and the scenery became more and more beautiful.
It is said that in the 19th century, there was a pomegranate tree in front of the Panlong Temple, which was planted when the temple was built, and the tree was old for a long time, withered and lost its life. But after a spring rain in 1995, the tree sprouted new shoots and was full of pomegranates. Some people say that it is the Panlong Temple to show the gods, this news spreads far and wide, the common people in a radius of 100 miles have come here to worship, and since then the Bayi Reservoir has been renamed Panlong Lake.
At present, Panlong Lake Scenic Area covers an area of 14 square kilometers and has become a comprehensive tourism resort integrating leisure, entertainment and conference. There are both guesthouses and family hotels, as well as specialty snacks. There are also entertainment facilities such as bowling and KTV, and there are three major islands in the lake, and many projects such as high-altitude trapeze, large water slides, dragon boat racing, swimming, mountaineering, and fishing have been carried out. However, the scenery here is still pure and natural. The water surface of the lake is wide, with a water area of 35 square kilometers, the water and the sky are connected, the water and mountains reflect each other, and the scenery is beautiful. With the continuous development and change of society, the natural resources endowed by nature to human beings are also constantly developed and utilized, creating conditions for a colorful and happy life for human beings.