mountains to the north and the South China Sea. Climate The area has a tropical wet and dry climate (Köppen Aw), featuring very warm weather all year around. Monsoonal influences are strong, with a relatively lengthy wet season and a pronounced dry season. The coolest month is January, at , while the hottest, unlike much of the rest of China, is June, at ; the annual mean is . Water temperatures remain above year-round. Subdivisions Before July 30, 2014, there were direct jurisdiction over four county-level districts and two township-level subdistricts (), six towns () and four state-run farms in Sanya City. Now there are four districts in Sanya. Tourism In recent years Sanya has become a popular tourist destination. Numerous international five star hotel chains are now established in the area. In 2009, the luxury Mandarin Oriental, Sanya hotel opened in the Dadong Hai area, the first Mandarin Oriental property in Hainan Island. There are now over 100 hotels, ranging from international brands to locally managed resorts. Russian and English signs can be seen throughout the city. In response to claims of over-charging of tourists (whether foreign or Chinese) at restaurants in the city, Hainan government officials and Sanya city officials have vowed to crack down on the practice. The Sanya Industrial and Commercial Bureau has implemented a real-time information system of the city's seafood restaurants during the May Day holiday for public supervision in order to stop any future price gouging by restaurants. Sanya also hosts the Guanyin of Nanshan, that is located within the Nanshan Temple (Sanya). Nature reserves of Yalong Bay Tropical Paradise Forest Park () and Sanya Coral Reef National Nature Reserve () are located nearby Yalong Bay, and Yalong Bay National Tourism Holiday Resort was created. In recent years, as the waters of Sanya Bay and others below mentioned are becoming clearer and healthier, several species of dolphins, including endangered Chinese white dolphins, appear along the coasts from time to time. However, they have not been considered as targeted tourism attractions. Transportation The city is served by Sanya Phoenix International Airport. Taxis are available throughout the city. Buses from other parts of Hainan serve Sanya's bus terminal. The No. 8 bus connects the airport to Dadonghai Beach. From there tourists can take the 24 or 25 bus to Yalong Bay or the 28 bus to Haitang Bay. There is also a free bus from