Introduction to Liumeng River Valley: It is said that more than 200 years ago, Emperor Qianlong stayed here for half a month during his southern tour. He not only left imperial poems but also gave rise to the legend of "Pillow Waves Liumeng". This is how it got its name. The Liumeng Valley Landscape Gallery is a canyon scenic spot with a total length of about three kilometers. The Liumeng River runs through the canyon.