Top Choice Cave in Hallmundarhraun

Viðgelmir – the Cave

The easiest lava tube to visit, and the largest in Iceland, 1100-year-old, 1.5km-long Viðgelmir is located on private property near the farmstead Fljótstunga. It sparkles with ever-changing rock formations and has a…
Natural Feature in Hallmundarhraun


Just a bit to the southeast of Fljótstunga on Rte 518, a bright yellow sign marks the turn-off to Arnarvatnsheiði along Rte F578 (rental cars not allowed). Follow the bumpy track for 7km to reach Surtshellir, a dram…