Children ride on a frozen lake at the Nanhu Park in Changchun, northeast China's Jilin Province, Jan. 8, 2020. Photo:Xinhua

Tourists visit a light show at the Nanhu Park in Changchun, northeast China's Jilin Province, Jan. 8, 2020. Photo:Xinhua

A child enjoys leisure time at the Nanhu Park in Changchun, northeast China's Jilin Province, Jan. 8, 2020. Photo:Xinhua

Tourists enjoy leisure time on a frozen lake at the Nanhu Park in Changchun, northeast China's Jilin Province, Jan. 8, 2020. Photo:Xinhua