The Park of the Hot and Cold Place is located in the Sister-in-Law Village of the Anping area. It stands at the foot of the Bailazi Mountain. The park is about 20 meters wide from the west to the east and about 500 meters long from the south to the north. In summer, it is extremely cold in the park, and the temperature of the surface of the earth is about 5℃ below zero. In winter, there is no accumulated snow and ice. The air is hot. In the slots of the rocks, you can even see fine green grass growing. It is measured that the temperature reaches as high as about 5℃. The wonder of the Hot and Cold Place is still an unsolved mystery in the nature.