![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)](http://www.ecns.cn/hd/2018/06/05/a2379af9e3254af597ae7e6d188263af.jpg)
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)](http://www.ecns.cn/hd/2018/06/05/3d8b3e37969d436ebcba5d4ee6abe575.jpg)
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)](http://www.ecns.cn/hd/2018/06/05/a231c8ccd0e94adebb0ed61d70f288d1.jpg)
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)](http://www.ecns.cn/hd/2018/06/05/078e2bbafa484e6da88b1ee285a38869.jpg)
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)](http://www.ecns.cn/hd/2018/06/05/fabef1da60b34feaacfab38727188de4.jpg)
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)