Overnatning I Det Fri is a book listing over 1000 basic camp sites in Denmark. They are set up on spare pieces of land by private owners, organisations and local authorities. They range from small patches of grass next to harbours, to clearings in the woods, to sea side lookout points to lakeside plantations. The sites are for use by walkers and cyclists, some accept dogs, horses and boats! Many are completely inaccessible by car.