China's Harbin ice festival in picturesOne of the world's largest ice festivals has opened in north-eastern China, featuring frozen castles, glistening snow sculptures and lots of snowmen. ReutersThe Harbin International Ice and Snow Sculpture Festival officially opened on Saturday.EPAIt opened with a fireworks display and a light show.EPAThe festival draws millions of visitors from around the world every year.EPASome 120,000 cubic metres of ice and 111,000 cubic metres of snow have been used to build the Ice and Snow World.EPAThousands of artists and workers built the displays in a city where temperatures can plunge as low as -35C (-31F).ReutersThere are 2,019 snowmen on display on the frozen Songhua River.EPAThere is even a winter swimming competition - with more than 300 people braving the chilly waters.EPAThe festival, which first started in the early 1980s, runs until 5 February. All photographs subject to copyright as marked. Amazing pictures of the Harbin Ice FestivalChina's ice-and-snow city - in picturesChina's colourful world of ice sculpturesA winter wonderland...on Mars!The yachts racing on an icy lakeWhat does an ice orchestra sound like?The great replica sphinxes of China