Krafla Geothermal Rim Circuit F862
Active volcanic terrain where Earth's crust bleeds.
F862 circles the Krafla volcanic system through terrain that last erupted in the 1980s, where the road surface cracks from ongoing geothermal activity and steam vents mark active magma chambers below. This technical loop passes Leirhnjúkur’s sulfur fields and Víti crater lake, threading between fresh lava flows and unstable ground where the Earth’s crust remains thin and unpredictable.
Difficult route requiring experienced drivers and robust 4WD vehicles due to sharp volcanic rock, steep grades, and potentially hazardous geothermal areas. Road conditions change seasonally as freeze-thaw cycles crack the surface, and some sections may be temporarily closed due to volcanic activity. Best accessed June through September with full recovery gear, extra tires, and emergency supplies. The circuit provides unmatched access to Iceland’s most active volcanic processes but demands respect for the volatile environment.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Rock |
| Features | High Altitude, Remote, Scenic |
| Length (miles) | 15 mi / 24.1 km |
| Duration | 1 day |
| Max elevation (ft) | 1950 ft |
| Best season | June-September |
| Minimum vehicle | Modified 4WD with skid plates |
| Nearest town | Mývatn, Iceland |
| Land manager | Icelandic Road and Coastal Administration |
| Permit required | No |
| Cell service | Spotty |
| Water crossings | No |
| Dispersed camping | No |
| Start coordinates | |
| End coordinates | |
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| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock Landcruiser or Defender handle F862, or does it need mods?
Stock high-clearance 4WD is not enough here — the volcanic rock surface is sharp and unforgiving on unprotected underbodies. You need skid plates, reinforced sidewall tires, and ideally a suspension lift. A puncture in a remote section of active lava field is a bad day.
When does F862 actually open each year, and can snow close it mid-summer?
The Icelandic Road and Coastal Administration typically opens F-roads in this region late June, though F862 can open later depending on snowpack and volcanic activity. Snow is possible even in July at elevation, and the road can close without warning due to geothermal events — check road.is before you leave Mývatn.
Do I need a permit or pay any fees to drive F862?
No permit is required, but F-roads in Iceland are strictly closed to non-4WD vehicles by law — driving a 2WD on an F-road carries a heavy fine. There are no trail fees, but respect all closures around active geothermal zones, which can be roped off by authorities at any time.
What's the hardest section of the circuit and what makes it technical?
The rim sections near the Viti crater and the lava field crossings are the most demanding — loose volcanic scree, jagged basalt edges, and sudden shelf drop-offs with no guardrails. Articulation matters more than power here; slow, deliberate wheel placement over rock is how you get through without shredding tires or high-centering.
How far is the nearest fuel stop from the F862 trailhead, and is there any camping on route?
Mývatn is your last fuel stop, roughly 15–20 minutes from the trailhead — fill up completely before heading out. There is no formal camping on the circuit itself; dispersed camping near active geothermal areas is prohibited, so plan to return to Mývatn or use established campgrounds in the area for overnight stays.
Trail track
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