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 :

Township-level districts

Hedong District
Hexi District

Towns

Fenghuang
Haitangwan
Tiandu
Tianya
Yacheng
Yucai

Wikipedia : Wikipedia information about Sanya.