Tourists threw water splash into the air which immediately turned into a circle of ice fog in northern most Chinese city of Mohe on December 2, 2017. /China News Service Photo

Temperature has reached minus 40 degrees Celsius in Mohe on Saturday. /China News Service Photo

Mohe is in northeastern Heilongjiang Province, which borders Russia. /China News Service Photo

Winter lingers for about seven months in the city, with frost-free season only stays for around 90 days a year. /China News Service Photo