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Coming from Bourron-Marlotte, take the D607 for 2.5km, then turn left onto the D104 at Grez-sur-Loing. Follow this road for 1km, where it changes name and becomes the D40d. Continue for another 1km to reach a large car park.
(S) From the car park, facing the lake, turn right: this is where the path around the lake begins. Continue for 500 metres and you will find the "Tacots du lac" station on your right.
(1) Turn left onto a path between two lakes and follow it for about 500 metres. The path turns left, continue for 300 metres and go straight on at the next junction to join the D40D.
(2) Turn right onto the D40D for 250 metres, then turn left onto Chemin des Prés. Follow this road for 400 metres until you reach the D40F. Turn right onto this road for a few metres, then turn left to rejoin Chemin des Prés for 600 metres.
(3) Turn left onto a small path for 250 metres, which leads to theGR®13b. Turn left and follow the path, which rejoins the D40F.
(4) Take the D40F (Route de Grez) to the right for 300 metres, and turn right onto the D40D departmental road to return to the car park.
Visorando Member
Moderate 
Difficult 
