On grinding down the bedrock which is normally comprised of dark-gray basalt, the material of mechanism gets carried away by the river of the glaciers to the sea where the currents and waves moulds it into most complex scenic formations. Unique beach starting from Hofn has been created right on Hornafjörður shore that stretches far towards west. You can find the black sandy beaches profusely at the place. Black sand which is the impact of glacial grinding is mesmerising to watch.