F-roads in Iceland are remote mountain roads that are marked with an “F” before the road number—such as F210 or F35. These highland routes take you deep into Iceland’s interior, offering access to dramatic landscapes, volcanic deserts, glacial rivers, and iconic destinations like Landmannalaugar and Askja. However, they are extremely rough and challenging to drive, often unpaved, with loose gravel, steep inclines, and unbridged river crossings.
Driving on F-roads is only permitted with a 4×4 or AWD rental car—it’s not just a recommendation, it’s the law. Standard or 2WD vehicles are strictly prohibited and are not insured on these roads. If you’re planning a self-drive tour through Iceland’s highlands during summer, be sure to rent a 4×4 vehicle that’s well-equipped for rough terrain.
F-ROADS ICELAND – CONDITIONS AND OPENING DATES
F-Roads in Iceland are NOT open during winter. Opening of F-roads varies every year depending on weather and road conditions. They are not maintained regularly like other roads and are therefore much rougher and have big rocks and large holes that can easily damage the undercarriage of your rental car. This can result in a high damage cost for the renter. Please check the National Road Administration website, www.road.is, for more information regarding openings and road conditions.
Opening dates on F-roads in Iceland and current road conditions of mountain roads.
SOME F-ROADS ARE NOT MARKED WITH F
This is where things can get a bit confusing for travellers. While most F-roads in Iceland are clearly marked with an “F” in front of the road number, some may be missing that title. These routes are often mistaken for regular roads, but due to their remote locations and lack of maintenance, they can be extremely difficult to navigate and are not suitable for standard passenger rental cars.
Some well-known examples include Road 550 (Kaldidalur), Road 35 (Kjalvegur), and Road 570 (Jökulhálsleið). Despite lacking the “F” designation, these roads are rough, steep, and full of loose gravel and potholes, often requiring a 4×4 or AWD vehicle to drive safely.
OFF ROAD DRIVING IN ICELAND IS FORBIDDEN
Off-road driving (off marked roads) is forbidden by law in Iceland. The nature is very delicate so driving off-road will leave tyre marks which can remain visible for decades. No matter the type of landscape, be it green or simply black sand – off road driving will always leave a lasting mark and is considered vandalism. Drivers who cause damage to the land and the vegetation can easily expect a heavy fine for offences. Also, no insurance covers damage to the rental vehicle while driving off road.
REGULAR GRAVEL ROADS
Not all gravel roads require an AWD or 4×4 car. Passenger cars are allowed to drive on all of the non F-marked gravel roads except the non-marked F-roads mentioned above. If you are not used to driving on gravel roads please take extra caution. The speed limit on gravel roads is lower than on regular paved roads. Only 80 km/h vs. 90 km/h. Keep in mind that though the speed limit is 80 km/h this is too fast for drivers unfamiliar with the terrain. We recommend that you drive at the speed you feel comfortable with and let other drivers pass you rather than try to keep up with other drivers.
When a car comes from the opposite direction, slow down and pull out to the right side of the road. This can reduce risk of costly damage to paint and windshield from flying stones.
Driving Information
There are many things about driving in Iceland that might come as a surprise. Read more.
Important Read
Sand and ash storms are not something that people expect when coming to Iceland. Read more.
