Tourists visit an aquarium in Sanya, south China's Hainan Province, Feb. 17, 2018. Hainan aims to be an international tourism consumption center. (Xinhua/Guo Cheng)
A cruise ship is seen at a dock of Phoenix Island in Sanya, south China's Hainan Province, March 2, 2017. Hainan aims to be an international tourism consumption center. (Xinhua/Guo Cheng)
Tourists visit a duty free shop in Sanya, south China's Hainan Province, Feb. 18, 2018. Hainan aims to be an international tourism consumption center. (Xinhua/Guo Cheng)
Stitched photo taken on Feb. 17, 2018 shows a hotel in Sanya, south China's Hainan Province. Hainan aims to be an international tourism consumption center. (Xinhua/Guo Cheng)
Tourists visit a duty free shop in Sanya, south China's Hainan Province, Feb. 18, 2018. Hainan aims to be an international tourism consumption center. (Xinhua/Guo Cheng)