The objective of this paper is to analyse the modalities of practice for winter and summer activities (hiking, ski touring and snowshoeing) in the Massif of Bauges. Modalities of practice are defined from several variables such as level, frequency, and motivation. The methodology combined a quantitative method based on a survey with a qualitative method based on semistructured interviews. From a general standpoint, the profiles of recreational users in the Massif of Bauges are compatible with the previous observations made of those visiting natural areas, and especially of those participating in adventure sports. They are mainly men over 40 years old, who are university graduates and belong to privileged social categories. Results highlight individuals' different usages of the same activity. Also, it is possible to identify an age and gender effect in the structuring of the modalities of practice.