Sanya is a city in southern Hainan province of China. It has a population of 536,000 as of 2006. After Haikou, the capital, it is the second most populous city of the island. Sanya is renowned for its tropical climate and has emerged as a popular tourist destination. It is also the focus city for China’s Utsul Muslims.
Sanya is a sub-provincial city. It has direct jurisdiction over 2 township-level districts and six towns :
Wikipedia : Wikipedia information about Sanya.