Introduction to Water Gate: Water Gate, also known as Shuiguan, was built in October of the 12th year of Wanli in the Ming Dynasty. It was built on the east side of the castle, with a cliff as the base. There are five layers of stone strips on the base, and fifty-five rows of square bricks are placed on the stone strips to form an arch. The door is eight feet wide and one foot four feet high, with the upper arch and the lower part. The North West Yuhe has a beautiful shape without any modification, making it appear simple and clear, simple and generous.