Hainan (Chinese: 海南; Mandarin Pinyin: About this sound Hǎinán (help·info); Jyutping: Hoi² Naam4; Pe̍h-ōe-jī: Hái-lâm; literally "South of the Sea [Qiongzhou Strait]") is the smallest and southernmost province of the People's Republic of China (PRC). The name "Hainan" also refers to Hainan Island (海南岛, Hǎinán Dǎo), the main island of the province. Hainan is located in the South China Sea, separated from Guangdong's Leizhou Peninsula to the north by the shallow and narrow Qiongzhou Strait.
(Source Wikipedia)