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.
Chishui, a county-level city in Guizhou Province, administered by Zunyi City, is located in the northwest of Guizhou Province, in the middle and lower reaches of the Chishui River, between longitude 105 °36'E and latitude 28 °15'N, bordering Xishui County, Guizhou Province in the southeast and Gulin, Xuyong and Hejiang counties in Sichuan Province in the northwest. It is 225km away from Zunyi, 377km from Guiyang, 172km from Chongqing, 293km from Chengdu and 40km from Luzhou, with a total area of 1852 square kilometers. In 2018, Chishui has jurisdiction over 3 subdistrict offices, 11 towns and 3 townships. In 2016, the city had a permanent population of 244100 for half a year. In 2016, the city's gross domestic product (GDP) was 9.614 billion yuan, with a per capita GDP of 39548 yuan. Successively won the excellent tourist city in China,