Aerial view of Hainan Free Trade Port(1/7)

Aerial view of interchange of Wanyang expressway and Danbai expressway in south China's Hainan Province, April 11, 2022. The transport upgrade will help boost the building of Hainan into an international tourism and consumption center. (Photo: China News Service/Luo Yunfei)

Photo taken on March 25, 2022 shows the G15 Shengyan-Haikou expressway under construction in Haikou, south China's Hainan Province. The expressway will link northeast China's Liaoning Province with the southernmost island province. (Photo: China News Service/Luo Yunfei)

A passenger plane flies over the Haikou Ring Expressway in Haikou, south China's Hainan Province. The second phase of the Haikou Ring Expressway opened to traffic on March 30, 2021. (Photo: China News Service/Luo Yunfei)

Aerial photo shows the Haiwen Bridge, South China's Hainan Province. The cross-sea bridge, built over seismic faults, officially started operation on March 18, 2019. The Haiwen Bridge is the first cross-sea bridge crossing active faults and the most earthquake-resistant bridge in China. (Photo: China News Service/Luo Yunfei)

Aerial photo shows a section of the Wanning-Yangpu expressway in Qiongzhong, south China's Hainan Province. The expressway opened to traffic on Dec. 28, 2019. (Photo: China News Service/Luo Yunfei)

Photo shows a view of the expansion project of Meilan International Airport in Haikou, south China's Hainan Province. The expansion project of Meilan International Airport in south China's resort island of Hainan was officially put into operation on Dec. 2, 2021. (Photo: China News Service/Luo Yunfei)

Aerial photo taken on March 25, 2022 shows the construction site of a passenger transportation station at the Xinhai Port in Haikou, south China's Hainan Province. The completion of this project will help improve the service level of the Xinhai Port in Haikou. (Photo: China News Service/Luo Yunfei)