The East Lake was originally a bluestone mountain. When Qin Shihuang visited the East, he was stationed here to drink horses, so it was called Ruoruo Mountain. After the Han Dynasty, Ruoruo Mountain became a quarry in Shaoxing. After thousands of years of chisel and axe cutting, half of the castle peak was cut off, forming a cliff as high as 50 meters. Workers generally go more than 20 meters underground, and some even 40 to 50 meters. After a long time, a clear water pool with a length of more than 200 meters and a width of about 80 meters was formed. Tao Jun, a famous rural saint in Shaoxing in the late Qing Dynasty, had a unique vision. He used the quarry to build a fence, widened the water surface slightly, and became the East Lake with mountains and rivers in harmony. After a hundred years of artificial decoration, East Lake has become a wonderful landscape bonsai.