Introduction to Tiaojiao Valley: On the east side of Langya Cultural Exhibition Hall, between Langyatai and Zhenggao Mountain, there is a green and swirling ravine - Tiaojiao Valley. The stream at the bottom of the ditch is gurgling, and there are many roses growing beside the stream. Tall chestnut trees grow everywhere in the ditch. In summer, they are leafy and cool, and in autumn, the fruits are ripe and fall to the ground, exuding the joy of harvest.