To get to the starting point, from La Bresse, take the D34 towards Munster, then turn right onto Route du Lac des Corbeaux and head to the car park by the lake.
(S/E) Head towards the lake and take the path between the bicycle car park and Route de Vieille Montagne.
(1) Cross the dyke on the right, then walk around the lake following the path and return to the dyke.
(1) Continue straight ahead and return to the car park (S/E).