A car park is available for walkers in Ermensbach (hamlet in the commune of Rimbach). Access from Masevaux: take the D466 towards Ballon d'Alsace as far as the village of Oberbruck and there, follow the road towards Rimbach as far as the crossroads and turn left at the entrance to the village.
See transport to get there
From the parking lot, go up the road, passing to your right the chapel 'Notre Dame du Perpétuel secours' and continue straight to the road and follow the signs 'Croix Jaune'. You are on the path of the stones to reach the Neuweiher.
To reach Lac des Perches, take the signposted 'Blue Rectangle' trail. To get back down, take the 'Blue Triangle' markup. You will pass by the village Rimbach to return to the parking lot.