Dinghu Spring is a natural mountain spring, which originated from Dinghu Mountain in Zhaoqing City, a national nature reserve. Dinghu District, where Dinghu Mountain is located, enjoys the title of "natural oxygen bar". More than 20 experts from the International Health Assembly unanimously recognized that Dinghu District has the basic characteristics of the hometown of longevity and meets the standards of the hometown of longevity. This is a good place of "Yi Yang, Yichang, Yi Yan, Yichang, Mu Yi, Anyi and Yixin". Dinghushan spring, represented by Longtan Waterfall, has been handed down to this day since the sixth ancestor Huineng Gao Tuzhi of the Tang Dynasty came here to build a temple in 678 AD. It is known as the "first spring in Lingnan" because of its rare purity.