An ice sculpture is displayed at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

A competitor works on an ice sculpture at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

An ice sculpture is displayed at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

A visitor takes photos in front of an ice sculpture at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

Competitors work on their ice sculptures at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

A competitor works on an ice sculpture at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

A competitor works on an ice sculpture at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

A competitor poses for a photo with his ice sculpture at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]

Competitors work on their ice sculptures at the Fourth Guangsha Cup Ice Sculpture Competition for College Students in Harbin, Heilongjiang province. [Photo provided to chinadaily.com.cn]