China National Highway 224 Road in China From Wikipedia, the free encyclopedia China National Highway 224 (224国道) runs from Haikou in Hainan to Sanya, Hainan. It is 309 kilometres in length. It is the middle part of Hainan Ring Highway. Length309 km (192 mi)FromHaikou in HainanToSanya in HainanCountryChinaQuick facts National Highway 224, Route information ... National Highway 224224国道Route informationLength309 km (192 mi)Major junctionsFromHaikou in HainanToSanya in Hainan LocationCountryChina Highway system National Trunk Highway System Primary Auxiliary ← G223→ G225Close Route and distance More information City, Distance (km) ... Route and distance CityDistance (km) Haikou, Hainan0 Xiuying District, Hainan8 Tunchang, Hainan93 Qiongzhong, Hainan145 Tongshi, Hainan223 Tiandu, Hainan295 Yulin, Hainan304 Sanya, Hainan309 Close See also China National Highways This People's Republic of China road-related article is a stub. You can help Wikipedia by adding missing information.vte Related Articles