F66 (Kollafjarðarheiði) is a challenging drive located in the West Fjords peninsula in northwestern Iceland. It's only suitable for 4x4 vehicles with very high ground clearance: along the way there are a few small rivers.
The road is 24.5 km long and runs north-south from Road 61 to Road 60. It is a 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 rocks. Expect large potholes, many ruts and large boulders on their surface. Minimal time for the drive is 2 to 3 hours. This road is not for people that are afraid of heights. Driving in a small passenger car is simply and plainly irresponsible and can be very dangerous. It is a road for off-road lovers and people who want to escape the crowds. 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. It is not recommended to drive unaccompanied. 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. The drive offers breathtaking landscapes. The road has everything: a few small rivers, a mountain pass (Kollafjarðarheiði) and 360º epic views.
There are a few small rivers. Crossing big rivers requires a bit of experience. Do not attempt to cross with one car, or during heavy rain. It can be treacherous if the water level rises due to lots of rain and warm weather. Only well equipped jeeps and larger vehicles are able to cross the rivers. Please do not attempt to cross this river on a small jeep. In case you get stuck in the river, call 112. Always check the river to ensure that it's not too deep. Rivers that can change rapidly with rain or change in heat. This road is amazing by day, but can be dangerous during the dark night. Rental car insurance does not cover damages from water, including any damage caused by crossing rivers.