Introduction to Zhenjiang Boulders: The lower section starts from Xu Xiake’s boarding point in front of the Boat Gang Hall and ends at Yueritan. The total length is 7.5 kilometers and takes about an hour and a half. Along the river, there are Cockscombs and Golden Roosters Locking Pass. Zhenjiang Boulders, Scenes such as turtles and white camels, King Nan beheading mountains, and dangerous shoals in the moonlight are also covered with cliff inscriptions in various calligraphy styles.