Aerial photo taken on May 13, 2020 shows a view of the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)

Aerial photo taken on May 13, 2020 shows a view of the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)

Aerial photo taken on May 12, 2020 shows motorboats sailing near the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)

Aerial photo taken on May 13, 2020 shows a view of the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)

Aerial photo taken on May 13, 2020 shows tourists enjoying leisure time on the beach at the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)

Aerial photo taken on May 13, 2020 shows a view of the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)

Aerial photo taken on May 13, 2020 shows fishing boats berthing at a harbor of the Hailing Island in Yangjiang, south China's Guangdong Province. (Xinhua/Deng Hua)