Park in the shaded car park, located at the dam on the Tourliac-Villereal road.
(S/E) Follow the path across the dam to reach the opposite side.
(1) Turn left onto the path skirting the lake.
(2) Pass the observation hut situated a few metres back from the bank.
Continue along the lakeside path.
(3) Cross a small bridge to reach the other bank. You are roughly halfway through the walk. Continue along the lakeside path.
(4) At this point, the path veers slightly away from the shore (a small rise offering a lovely panoramic view of the structure). Continue along the lakeside back to the car park (S/E).
Apart from that big dog I met on the trail, which had wandered away from its owner... , –a lovely walk!