Every year around the eighteenth day of the eighth lunar month, it is a good time to watch the tide. During this period, the autumn air is cool and the temperature is pleasant. On the seawall at the mouth of the Qiantang River, tourists gather to watch this spectacle. Haining tide is famous at home and abroad for its high tide, changeable, violent and thrilling. Haining tides twice a day, with a 12-hour interval between day and night, and there are more than 150 good days to watch tides a year. Since the Ming and Qing dynasties, Haining folks have always had the traditional custom of watching tides on the 18th day of the eighth lunar month. There are three main viewing points to watch the autumn tide in Haining: 1. The tide watching pavilion under Haitang Town, Haitang Town, Yanguan Town, Haining City. Here you can see the majestic and magnificent scene of "the first-line tide of the pagoda". At the beginning of the tide, there was a white line running across the river in the horizon, accompanied by a rumbling sound, just like the rolling thunder in the horizon, galloping from far to near. Immediately, a white tidal peak rushed to the front, and a three- or four-meter-high water wall stood upright on the river surface, spraying beads and spattering jade, and it was like a galloping horse. 2. Babao, 8 kilometers east of Yanguan Town. Here you can watch the spectacle of the collision of tides. After the tide rises into the estuary, due to the different topography of the north and south banks, the tide speed is fast in the south and slow in the north, and the tide head is gradually divided into two sections. The southern section with rapid progress is called the southern tide; the stagnant northern section of the tide, in the view of tide watchers on the north bank, comes from the east, so it is also called the east tide. When the two tides meet, like a landslide, a thousand snow-capped peaks rise up across the river, which is quite spectacular. 3. The old Yancang, 12 kilometers west of Yanguan Town. Here you can enjoy the "return (back) head tide". There is a 9-meter-high "T-shaped dam" straight into the middle of the river. At this point, the tide has reduced its momentum slightly, but it rushed to the head of the T-shaped dam, and then the tide turned back to the bank of the pond, and people who watched the tide straight to the top of the pond rushed Come. The sudden attack of the returning tide often catches tide watchers by surprise and flees in shock. In addition, Haining tide watching is divided into day and night. It is very interesting to watch the tide during the day, with a wide field of vision and a panoramic view of the raging tide. And watching the night tide when the bright moon is in the sky has a different flavor.