A text in the primary school textbook "Watching the tide" let Haining Qiantang Chao women and children know, famous all over the world, this time with children to experience the August 18 tide in person, realize their childhood dream, send the children a preview class. Qiantang tide viewing is a natural wonder and a traditional folklore activity with a long history in Zhejiang Province. The Mid-Autumn Festival is the best time to watch the tide. Starting in Han and Wei, Qiantang tide is divided into cross tide, first-line tide, and back tide. The tide is the largest on the 18th of August of the lunar calendar. It is a centrifugal effect of celestial gravity and earth rotation, plus the special terrain of the Qiantang River horn in Hangzhou Bay. The Watching the tide resort park is located in the south of Yanguan Town, the Qiantang River in the south, and the Hangjin Highway in the north. The park is a narrow and long terrain from east to west, with a total length of 1360 meters and a total area of 16.24 hectares. Before the war of resistance, there were seaside parks in the sea pond area. Since 1994, the seaside "tidal viewing resort park" has been rebuilt. The park has national key cultural and environmental protection units Yulin Shitang, Ming Dynasty Zhanyan Pagoda, Sun Yat-sen Guanchao Pavilion, Tianfeng Haitao Pavilion, Mao Zedong Guanchao Shibei Memorial Pavilion, Qianlong hand planting quaint, historical talent monument, Zhenhai Tieniu and other attractions; Landscape sea pond, 2 tide viewing buildings, 6 tide viewing platforms are the best viewing point of the world's wonders Haining tide; Baishitai Square integrates large-scale festival activities, sightseeing, literary performances, leisure and entertainment, and is a landmark building of the tide viewing resort park.