Þórsmörk, or Thorsmork if you like, is named after the god Thor (with the big hammar; the one that gave you the name of Thursday), meaning the field or land of Thor. It is a beautiful site located on the north side of the glacier Eyjafjallajökull, the one that erupted in 2010. To enter Þórsmörk you continue the gravel road (F249) that continues after Seljalandsfoss waterfall, to the north and then north-east. You need a 4WD vehicle, preferebly a modified one with bigger tires than normal, and higher. There are some rivers to cross on the way, none of them has a bridge.