Trekyllisheidin ultra (48K) is the longer version of Trekyllisheidin, starting in one of the two most remote and isolated communities in Iceland, Árneshreppur, inhabited by only 42 people according to the latest records. You might travel up there by yourself, but otherwise just take the bus, provided be the organizers. The race starts at the local community house in Árnes in Trékyllisvík. From there, the route follows a gravel road for the first couple of miles, but after that, the runners start the ascend to the mountains, following a rough super-jeep trail, north of Mt. Glissa and then turning south to lake Reykjarfjarðarvatn and Mt. Búrfell. After some 34 km, the route crosses Goðdalsá river. A few km later the runners start the descent to Steingrímsfjörður, down to Selárdalur walley where they cross river Selá and take the final sprint to the goal at the ski hut at Brandsholt. From there it is only 16 km drive (or run) towards south to the swimming pool and hot tubs in Hólmavík village – or 21 km towards east to the fishing village of Drangsnes.