Askja Caldera Volcanic Desert Crossing

F88 through the Ódáðahraun lava field to Askja Caldera crosses terrain so alien that NASA sent Apollo astronauts here to practice moonwalks. The route cuts across black volcanic desert where nothing grows for miles, past Herðubreið’s table mountain fortress and through the Dyngjufjöll volcanic range to reach Öskjuvatn, Europe’s deepest caldera lake. The washboard corrugations and loose volcanic scree test your vehicle’s cooling system and suspension as you navigate around house-sized boulders dropped by ancient eruptions.

Difficult route requiring high-clearance 4WD with good ground clearance for sharp volcanic rock. Only accessible July through early September due to snow and impassable river crossings. No permits needed but carry extra fuel, spare tires, and emergency supplies as this is one of Iceland’s most remote regions. Vehicle convoys recommended for safety. The reward is standing on the rim of an active volcanic system where you can swim in geothermal lakes heated by the earth’s core, with camping allowed at designated areas near the caldera.