Cross the village of Saint-Martin-Vésubie and take the D89 towards Boréon. After the lake, continue right on the D189 and park in the lower car park of La Vacherie du Boréon.
(S/E) Head towards Chalet Vidron, pass between the Vacherie buildings and reach the upper car park. Continue through the forest (towards Pont de Peïrastreiche, Chalet Vidron) along a clearly visible path. Go around a pond on the right towards Chalet Vidron (hidden in the woods) and cross the wooden bridge at Peïrastrèche.
(1) Walk a few metres and, at the fork, continue uphill following the stream. Cross three wooden footbridges.
(2) Take the small path that starts on the left and climbs into the forest (if you arrive at the junction marked "Refuge de la Cougourde 0h30", "Lac de Trécolpas 0h45", "Pas des Ladres 1h45" a few metres before crossing the stream, you have gone too far and should retrace your steps).
The climb is quite steep until you reach the Vallon de Sangué, where you will see the Cime de Baissette.
The trail then follows the stream at a leisurely pace through beautiful surroundings.
(3) At the end of this valley, take the path that climbs up to the right and follows the small stream on the far right, then pass between the rock piles to reach the Vallon des Lacs Bessons.
From there, cross the stream and climb quite steeply up the scree, following the cairns to the first lake. The second lake, connected to the first by a small waterfall, appears just behind. Go around to the right, reach the highest point to discover a third small lake and look out over the three lakes.
(4) To descend and return to Lac des Sagnes, the path is almost invisible at the start but it is fairly easy to find in clear weather.
Follow a small valley between the rocks that goes around point 2558 on the left (a rocky peak about a hundred metres away with a cairn on top). The valley then becomes more pronounced, the route is well marked by cairns and there is a beautiful view of Lac de Trécolpas. Continue downhill, passing to the right of a small lake, then arrive at a steeper slope. The trail follows a small scree slope well marked by cairns to Lac des Sagnes.
(5) Before the lake overflows, turn right and follow the stream downhill until you come to a pretty little waterfall. Continue to the Refuge de la Cougourde, then take the path on the left for about 50 metres.
(6) Turn right at the descent (towards Vacheries du Boréon) and join theGR®52.
(7) Continue on the right, rejoining the path you took to climb up to the lakes.
(2) Take the same route back to the car park (S/E).
