Introduction to Huang Ju’s hometown: Huang Ju’s hometown is the hometown of Mr. Huang Ju, an admonishing official in the Sui Dynasty and one of the pioneers of tunnel water conservancy in ancient China. It is said that Mr. Huang Ju abandoned his official position and moved to Fujian because his advice to Emperor Yang of the Sui Dynasty was not accepted. He chose a place to live and built water conservancy projects, creating a legend that lasted for thousands of years.