At night the whole complex is illuminated with multi-coloured lights and ice-lanterns.
There is also a 160m high Father Christmas which organisers say is the tallest ice sculpture in the world.
The Harbin Ice and Snow Festival, which is in its 25th year, expects to welcome 800,000 visitors over the next few weeks with the festival expected to close at the end of February, weather permitting.
Watch videos of polar bear swimmers:
[Thanks to China Rising for the link]
And the mass wedding: