San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Yuhu District, which belongs to Xiangtan City, Hunan Province, is one of the two urban areas of Xiangtan City, which is located on the bank of Xiangjiang River in central Hunan. The Yuhu District gets its name from the thousand-year-old scenic spot "Rain Lake" in the territory. It is the commercial, scientific, educational and cultural center of Xiangtan, the key area of "two-oriented" social construction of Changsha-Zhuzhou-Xiangtan urban agglomeration and the leading area of "two-oriented" social construction of Xiangtan city. As of 2018, Yuhu District has a total area of 451.39 square kilometers and has jurisdiction over eight streets, three towns and one township, with a total population of 520914 in 2016. In 2016, the Yuhu District completed a GDP of 59.254 billion yuan. Yuhu District is the birthplace of Xiangtan City, where Xiangtan County was relocated in the Song Dynasty. Because of the proximity to the Xiangjiang River, the water and land transportation is well developed; in the Yuhu District, there are Wanlou, Confucian Temple, Guan Sheng Dian, Luban Dian, Tangxing Temple and Qiu Jin's former residence.