Highland roads in Iceland are usually narrow gravel roads, and most rivers are unbridged. On maps, they are indicated with an F before the road number, with most of these roads intended for jeeps only.
- Driving outside marked trails is prohibited and is subject to nature conservation law.
- Crossing rivers should be attempted only in fourwhhel-drive vehicles, such as jeeps. Ensure that the four-wheel drive has been engaged before driving into the water. Drive very slowly but steadily in first gear and use the low range if available.
- Keep in mind that fords over glacial rivers keep changing. On warm summer days, the flow increases as the day progresses. Heave rain often causes rivers to swell, sometimes making them uncrossable even for large and well equipped vehicles. Glacial rivers usually have less water in the mornings.
- Deaths have been caused by underestimating the water volume in rivers. Before crossing a glacial river, it is necessary to examine its velocity, depth and bottom by wading into it. If you find that you would be unwilling to wade across the river on foot, you should not attempt to drive across it. Seek advice from experienced drivers and watch how and where they cross.
- There is only one petrol station in the highlands (at Hveravellir) that sells petrol and diesel. Keep this in mind when driving in the highlands.
- It is important to know the vehicle's insurance coverage before going on a trip in the higlands. For example, rented vehicles are not insured for damage that occurs while crossing rivers or lakes, and the chassis is not insured. Also, you need extra insurance for travelling in the highlands.
- Accommodation is limited in the highlands, and you need to make reservations with sufficient notice if you don't want to sleep in the vehicle or in a tent.
- Rangers operate at most major tourist centres in the highlands. Their job is to receive travellers and provide information. Travellers should obey rangers' instructions.
- Highland roads are open only during the summertime, weather and other cicumstances permitting. Information about opening dates can be obtained by phoning 1777 or at www.road.is