Particularly impressive images of a huge iceberg breaks in Iloylisat fjord, near the archaeological site of Sermermiut West Greenland. The Ilulissate glacier is one of the largest in the northern hemisphere, with an annual production of 20 billion tonnes icebergs, some of which are over 1000 meters. Their size is such that they can remain trapped in Norway several years ago freed and washed away by the ocean.