Hukou Waterfall is the second largest waterfall in China and a wonder of the Yellow River Basin. It is located at Hukou of the Yellow River, 25 kilometers southwest of Jixian County, Shanxi Province. To say that the width and height of Hukou Waterfall are not large, it is surprising that its flow is considerable. In the dry season in winter, the minimum hourly flow is only150 ~ 300m3, at this time, the river is frozen and the trickle is trickling, giving people a sense of beauty; In April, once the glacier thawed, the flow per second suddenly increased to more than 1000 cubic meters, reaching 8000 cubic meters at the highest time. At this time, the huge flow slammed down with a large amount of ice, such as the roar of lions and tigers, shaking the earth; In the golden autumn rainy season, thousands of streams and rivers gather together, with a flow rate of more than 3,000 cubic meters per second, and all waterfalls are connected into one piece. At this time, Hongbo roared, violently rolled and thundered, and the scene was extremely spectacular. The sound of Hukou Waterfall is exciting.1September, 938, when War of Resistance against Japanese Aggression was extremely hard and the Chinese nation was in danger, the famous poet Guangweiran led an anti-enemy performance team to Hukou, and his mood was conquered by the rushing waterfall. The surging Yellow River water set off a great tide in the poet's mind, and it was here that he wrote the immortal poem Ode to the Yellow River. Back in Yan 'an, Xian Xinghai set the poem to music, and the famous The Yellow River Cantata was born. This group song, which shows a strong national spirit, has resounded all over the river since then, and it constantly inspires Chinese sons and daughters to fight bloody battles for the dignity of the motherland.