A recreational vehicle is displayed at an exhibition area of the Hainan World Leisure Tourism Expo 2020 in Haikou, south China's Hainan Province, Nov. 19, 2020. The expo opened here on Thursday, with an exhibition area of 20,000 square meters. (Xinhua/Guo Cheng)

A visitor watches a displayed camping tent at an exhibition area of the Hainan World Leisure Tourism Expo 2020 in Haikou, south China's Hainan Province, Nov. 19, 2020. The expo opened here on Thursday, with an exhibition area of 20,000 square meters. (Xinhua/Guo Cheng)

Visitors are seen at an exhibition area of the Hainan World Leisure Tourism Expo 2020 in Haikou, south China's Hainan Province, Nov. 19, 2020. The expo opened here on Thursday, with an exhibition area of 20,000 square meters. (Xinhua/Guo Cheng)

Visitors select pearl necklaces at an exhibition area of the Hainan World Leisure Tourism Expo 2020 in Haikou, south China's Hainan Province, Nov. 19, 2020. The expo opened here on Thursday, with an exhibition area of 20,000 square meters. (Xinhua/Guo Cheng)

Visitors are seen at an exhibition area of the Hainan World Leisure Tourism Expo 2020 in Haikou, south China's Hainan Province, Nov. 19, 2020. The expo opened here on Thursday, with an exhibition area of 20,000 square meters. (Xinhua/Guo Cheng)

A visitor experiences VR surfing at an exhibition area of the Hainan World Leisure Tourism Expo 2020 in Haikou, south China's Hainan Province, Nov. 19, 2020. The expo opened here on Thursday, with an exhibition area of 20,000 square meters. (Xinhua/Guo Cheng)