[Photo provided to China Daily]

The two tides then come closer and flow together like embracing lovers, offering a magnificent view.

The back-flow bore is the most popular one with young people where they wait at the river dike.

When the waters come toward them, the cautious ones move away, but many wait until the 5-meter high water wall crashes into the dike.

The back-flow bore can be experienced at Laoyancang in Haining county, in Jiaxing city, as well as in Qige, in Jianggan district and at the Beauty dike, in Xiaoshan district in Hangzhou.

Be sure to arrive at the place of your choice in time, or you may miss the short but breathtaking spectacle that can be seen only once a year.