Qiantang River, known as Zhejiang in ancient times, has its full name "Zhejiang", also known as "Zhijiang". Generally, the Fuyang section of Zhejiang Province is called Fuchun River, and the Hangzhou section of the lower reaches of Zhejiang Province is called Qiantang River. Qiantang River, first known as Shanhai Jing, is one of the main birthplaces of Wu-Yue culture because it flows through ancient Qiantang County (now Hangzhou). Qiantang River is the largest river in Zhejiang Province. It is the naming source of Liangzhe Road in Song Dynasty and the provincial name of Zhejiang Province when it was founded in early Ming Dynasty. Beiyuan Xin'an River is 588.73 kilometers long and Majinxi River is 522.22 kilometers long in the upper reaches of Nanyuan Qujiang River. From its source, it flows through southern Anhui Province and Zhejiang Province. The basin covers an area of 55,058 square kilometers and flows into the East China Sea through the Hangzhou Bay. On the Qiantang River, the order from west to East is Qiantang River Bridge (1st Bridge), Fuxing Bridge (4th Bridge), Xixing Bridge (3rd Bridge) and Qiantang River Second Bridge (2nd Bridge). Among them, Qiantang River Bridge is a double-deck railway and highway bridge, Xixing Bridge does not take freight cars, and the second bridge is also a highway railway bridge. Qiantang River, the largest river in Zhejiang Province, flows from west to East into Hangzhou Bay and into the East China Sea. Qianjiang tidal bore is a natural wonder in the world. It is caused by the centrifugal effect of gravity of celestial bodies and the rotation of the earth, together with the special topography of Hangzhou Bay trumpet. We entered through the main entrance of Yunqi Bamboo Trail, then went up Wuyun Mountain, and then came down from Jiuxi. We were caught up with the flood on August 18 of the lunar calendar. We watched the tide on the River Road West of Qiantang River Bridge in Jiuxi, and our legs and feet were weak. The day before, I went to Qianjiang Century City in Xiaoshan District, the main venue of the 11th Summit of the leaders of the Group of Twenty (G20) in Hangzhou International Expo Center, and then went to Wentao Road to see the Hangzhou Grand Theatre in Qianjiang New Town on the North Bank of the Qiantang River and the area of the Hangzhou International Conference Center in the Great Golden Globe. Now, there is a light show in this area at night. It's good to watch the light show across the Qiantang River.