Parking is available by the wall of the Barrage de la Rive at the junction of Route de Laval and Route de la Valla-en-Gier (D2).
(S/E) Head towards Laval; after two houses on the left, turn left down the slope to join the path below. The path runs right alongside the reservoir; there is no need to look for signposts (they are very discreet). Follow the shore until you reach a small wooden bridge at the far end of the lake.
(1) Cross the bridge and take the path on the left to reach a second bridge crossing the Jarret (usually with a lower flow than the Ban and sometimes dry in summer).
(2) Cross the bridge and, after it, turn left to continue along the path to the wall (you’ll come across two paths leading uphill to the right; keep left). At the wall, turn left to cross the dam and return to the start (S/E).

