A research project aimed at producing a better basis for decisions in the field of forest recreation. The surveys are published in four parts: Parts I, II, III and IV of Forest Recreation in Denmark (Koch 1978, Koch 1980, Koch 1984, Koch and Jensen 1988). The surveys are published in three parts (Jensen and Koch 1997, Jensen 1998, Jensen 2003). In 2007/08 the third series of surveys (Outdoor Recreation 2009) was initiated (Jensen 2012, Jensen &Tvedt 2012). The surveys described under the first two sub-headings of Forest Monitoring Programmes below, are all based on these methods, to retain the best possible basis for comparisons between the results and thus analyze for trends.