Aerial photo taken on Nov. 24, 2018 shows winter scenery of Tianquan Lake in Xuyi County of Huai'an, east China's Jiangsu Province. (Photo/VCG)

Photo taken on Nov. 24, 2018 shows a speedboat sailing in Tianquan Lake. (Photo/VCG)

Tourists visit Tianquan Lake by boat in Xuyi County of Huai'an, east China's Jiangsu Province, Nov. 24, 2018. (Photo/VCG)

Source: jschina.com.cn