After about half an hour we turned north into Sermilik – a 10km wide fjord also known as the Egede and Rothe Fjord - and negotiated our way up the fjord between hundreds of massive icebergs which had broken off three large glaciers feeding the fjord. Most of the icebergs were a pristine white, but some were a sparkling aquamarine blue, whilst others were brown or black carrying large chunks of rock from the moraines on top of the glaciers.