The start is on the Col de la Bonette-Restefond road, 10 km after the junction with the D900 at Jausiers and 450 m downstream from the "Halte 2000" restaurant.
A few parking spaces are available along the road.
Yellow signposts
(S/E) Leave the road and take the track located downstream. This quickly forms a fork: continue on the right-hand branch and cross the stream.
(1) At the next fork, turn right again. The path continues in more or less regular switchbacks and then passes between ruins. As you approach the Séa ravine, the slope becomes gentler and a path heading south-west becomes visible.
(2) Take the path on the left that climbs up the slope in the meadow and passes along the ridge of the Combe des Mottes. Continue along the ledge at the foot of the Pelounière and the Tête Dure. The path then joins the bed of the Terres Plaines stream, which you should cross at the ford. In front of you is a steep climb over large rocks.
(3) Follow the path that climbs up the rocks, following the markings carefully. At the flat section, continue towards a small pond. The path then runs alongside the stream and leads to the Lac de Terres Plaines.
(4) Follow the same route as on the way up to return to the starting point (S/E).