AbstractOur life-experiences and our background form the way we act and the activities we are involved in. The overall purpose in this thesis has been to study what habits are to be found in different activities related to the outdoors and how these habits have been developed. Hopefully this work can contribute to a better understanding of the meaning of habits in our lives and thereby play a part in a further differentiated talk about habits and knowledge in society. The background and my theoretical approach has been three views of habits:In practice these patterns of habits are not separable so this approach should be seen as a way of making the development of habits clearer. Another purpose is to study how the following concepts can be related to habits: Reflection, master-apprentice, episte?me, techne, phronesis, interest and tacit knowledge.