What does 三亚市 stand for? 

三亚市

Sanya (Chinese: 三亚; also spelled Samah) is the southernmost city on Hainan Island, and one of the four prefecture-level cities of Hainan Province in South China. According to the 2020 census, the total population of Sanya was 1,031,396 inhabitants, living in an area of 1,905 km2 (736 sq mi). Nevertheless, its built-up (or metro) area encompassing Haitang and Jiyang Districts was home to 801,020 inhabitants as of 2020. The city is renowned for its tropical climate and has emerged as a popular tourist destination, also serving as the training site of the Chinese national beach volleyball team. Sanya is home to small concentrations of Utsul people. Sanya is also the location of Yulin Naval Base, a major military facility on the South China Sea which is home to the People's Liberation Army Navy ballistic nuclear missile fleet.

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