National tourist route network co-developed by the five regional tourist offices in collaboration with the Ministry of Tourism. It consists of a national tour of 466 kilometres and six regional loops, whose routes are largely congruent with the national tour.

On the Circuit du Lac you will discover the Upper Sûre Lake in all its facets. In the midst of the Upper Sûre Natural Park, you can discover magnificent views, unique flora and fauna as well as small picturesque villages. The Circuit du Lac is divided into two hikes.