Introduction to Spring and Autumn Style: Due to the differences in climate and water volume among the four seasons, the scenery of Hukou also changes from time to time. The best viewing period for Hukou Waterfall is divided into two periods. One is from April to May in spring, which is the third month of the lunar calendar. Mountain peach blossoms bloom all over the mountains and the frozen ice cliffs on the shore melt, which is called the "March Peach Blossom Flood"; Second, in the autumn from September to November, when the rainy season has just passed, there are many mountain springs and streams along the river, collecting a large amount of clear water. Autumn winds blow through, and rainbows often appear, which is called "Hukou Autumn Wind". During these two periods, the water is large and stable, and the width of the waterfall can reach about a thousand meters.