The Laugavegur trek is the most famous multi-day hike in Iceland. It’s a 55 kilometer, four-day and three-night hike that starts in the highlands at a geothermal paradise known as Landmannalaugar. The trek is well marked and not too difficult, but a map or a GPS device is highly recommended.
The long trail goes past the eruption site of Eyjafjallajökull volcano and ends in the fertile, Jurassica Park-esque, valley of Þórsmörk. If you’re looking to explore the vastness and diversity of Icelandic nature, then this is your trek!