Access to the car park is via the D632 between Puntous and Trie-sur-Baïse. Beautiful road but easy to miss. Parking at the first two houses of the lake keepers.
(S/E) Head towards the lake, leaving the two houses on your left, then cross a small footbridge. Follow the yellow markings.
(1) Turn left onto the long footbridge (which is slightly hidden). Continue to follow the yellow markings.
(2) Bear slightly left. The route is well marked.
(3) Go to the right and follow the road. A footpath has been created so you don't have to walk on the road.
(4) Leave the road by turning left. Follow the markings to a very quiet road.
(5) Turn left onto this road and keep left at the fork shortly afterwards.
(6) Cross the bridge over the main supply to the lake, continue along the road for a few hundred metres, then take the path to the right (signposting destroyed). Follow it until you reach the road you left earlier.
(7) Cross the road and continue on the path opposite, which is not very visible in places. When you reach the tarmac road, turn left and continue straight ahead.
(8) Turn left onto a shaded path and walk along the lake on your left.
(9) Turn left at about a 90° angle. Be careful, as several yellow-marked trails intersect here.
(10) Follow the trail carefully. The trail is more or less visible. Reach the dam on the downstream side and climb halfway up it. Once halfway up, there are two options: either turn left and then right, cross the dam and enjoy the view of the lake, or turn right (trail) and return directly to the car park (S/E).