Located in the Southern Region of Iceland, the F337 (Hlöðuvallavegur) road is one of the steepest drives of the country, with breathtaking views.
Situated in the lava field at the southern foot of Mt Hlodufell, the road is 54.4 km long running north-south from Road F338 towards Road 37 (Laugarvatnsvegur). It is a very rough and challenging road only for a 4 wheel drive vehicle with high clearance. The track is pretty bad, it's not rolling with a lot of big stones. Expect large potholes, many ruts and large boulders on their surface. Driving in a small passenger car is simply and plainly irresponsible and can be very dangerous. Curve after curve, it goes up steeply: 500 vertical meters in 4 km. It’s one of the famous F Roads of the country.
The road is surrounded by lunar landscapes, and is pretty bumpy. It’s only open during the summer months, usually between late June and early September. Expect to be alone, this track is not very busy even and very remote. In case of a breakdown, there is very little in the way of passing traffic or inhabitants around, and no cell phone service in parts. It’s one of the highest roads of the country, climbing up to 681m (2,234ft) above the sea level.