Tourists drift on water in Nanchang, east China's Jiangxi Province, July 5, 2018. People cool themselves off by taking up water activities as high summer temperature scorches Nanchang. (Xinhua/Wan Xiang)

Tourists drift on water at the Tianqiaoyu scenic spot in Chengde City, north China's Hebei Province, July 4, 2018. (Xinhua/Wang Liqun)

A child cools off in the sea as high temperature hit Sanya City, south China's Hainan Province, July 3, 2018. (Xinhua/Chen Wenwu)

People cool off in the sea as high temperature hit Sanya City, south China's Hainan Province, July 3, 2018. (Xinhua/Chen Wenwu)

People cool off at a waterpark in Haizhou District of Lianyungang, east China's Jiangsu Province, July 2, 2018. (Xinhua/Geng Yuhe)

People cool off at a waterpark in Haizhou District of Lianyungang, east China's Jiangsu Province, July 2, 2018. (Xinhua/Geng Yuhe)

People play in a seaside resort in Qingdao, east China's Shandong Province, July 1, 2018. Six seaside resorts in the coastal city opened to the public on July 1, 2018 after safety inspection. (Xinhua/Wang Haibin)

People play in a seaside resort in Qingdao, east China's Shandong Province, July 1, 2018. Six seaside resorts in the coastal city opened to the public on July 1, 2018 after safety inspection. (Xinhua/Wang Haibin)

Children cool off in the fountain at a kindergarten in Xinyu City, east China's Jiangxi Province, June 27, 2018. Heat wave swept the city, with the highest temperature reaching over 35 degrees Celsius. (Xinhua/Zhao Chunliang)

Children cool off in the fountain at a kindergarten in Xinyu City, east China's Jiangxi Province, June 27, 2018. Heat wave swept the city, with the highest temperature reaching over 35 degrees Celsius. (Xinhua/Zhao Chunliang)