Introduction to Yangjiachuan Canyon: Yangjiachuan Canyon is 8 kilometers long, with a unique landscape line consisting of the Great Wall, ancient castles, ancient villages, ancient temples, plank roads, piers, etc. running through it. The cliffs on both sides of the river bank reach into the clouds, woodcutters and pharmacists are walking singing songs, the valley bottom is rugged with strange rocks, mountain springs are gushing, and rare birds are singing. The deep and quiet primitive natural scenery forms a beautiful landscape painting.