The Qiantang tidal bore in east China's Zhejiang Province, famous for its height and speed, is ushering in the best time of the year for sightseeing.

As the lunar month of July began on Wednesday, the anticipated Qiantang tidal bore welcomed its peak tidal bore viewing period with great waves and back-flow bores generating.

At the Cao'e River sluice in the Shangyu District of Shaoxing City, the fish scale tidal bore approached rapidly from a distance like thundering stallions. Meanwhile, in Haining City, the criss-cross tidal bore splashed against a dam and wowed viewers with breathtaking spectacles.

Qiantang River is known for the world's largest tidal bore. The criss-cross tidal bore, the one-line tidal bore, the back-flow tidal bore, and the fish scale tidal bore are the four common types of tidal bores in the Qiantang River.

The tides usually reach their peak on the 18th day of the eighth lunar month with spectacular scenes to be marveled at by countless visitors. The tidal bore is mainly caused by the gravitational pull of the moon.

The centrifugal force produced by the rotation of the Earth and the trumpet shape of the Hangzhou Bay in Zhejiang makes it easy for the tide to come in, but difficult to ebb, thus giving rise to the largest tidal bore.