Camping rough in Norway is a tradition enshrined in law. You can camp anywhere in open areas as long as you are at least 150m away from any houses or cabins, though certain restrictions apply in a limited number of circumstances – for example in sea-bird sanctuaries. As a common courtesy, you are also expected to ask the landowner/farmer for permission to use their land if feasible – and it is rarely refused. Fires are not permitted in woodland areas or in fields between April 15 and September 15, and camper vans are not allowed (ever) to overnight in lay-bys. A good sleeping bag is essential, since even in summer it can get very cold, and, in the north at least, mosquito repellent is absolutely vital.