Start at the Source des Treize Rais.
(S/E) Take the path eastwards for 1.5 km.
(1) Continue straight on for 500m, until you reach a path on the right before two large rocks.
(2) Continue straight on, then a little further on, 200 m to the right, head down to the lake.
(3) Turn around, turn left and, after the two rocks, rejoin the path.
(2) Turn left and head straight down to the path. Continue to the right for 400m.
(4) Then, via the ford on the right, head back up to the track, passing under the power line to rejoin the original path.
(1) Turn left and follow the same route back to the starting point (S/E)
Moderator’s note: route amended on 23/06/23 – starting point is now the Source des Treize Rais rather than the Le Val equestrian centre.