Situated at the southern-most tip of Hainan Island, Sanya lies in the southern valley of the Wuzhi Mountain range. Sanya has a population of about 450,000 and covers an area of about 1,900 sq km, with about 210 km of coastline highlighted by natural beaches, fresh sea breezes and crystal-clear waters. Sanya is located at 18° latitude and 108° longitude and adjoins Tongzha County to the north, Baoting and Lingshui counties to the northeast, and Ledong County to the northwest.