Park in the Maison des Sources car park, located at No. 1, Chemin des Sources in Gazinet in the commune of Cestas.
(S/E) Follow the stream downstream on the left bank. At the picnic tables and benches, turn left to join and cross Chemin des Sources to head towards the Monsalut estate. You will reach a ditch.
(1) Turn right and follow the ditch on your left for a few hundred metres. You will come to a crossroads with a small laurel tree. Take the path on the left and follow the paths around the Monsalut estate without any particular difficulty. You will come to a small lake.
(2) Walk along it, turning right, until you reach a bridge, then cross it to the left. Next, go around thesecond lake and continue along the wide path that runs along the dyke separating the two lakes. Then cross Chemin des Sources. Reach the stream and walk along its left bank until you reach a bridge.
(3) Continue along the path, cross the stream at the power line, and continue through the woods to reach the Chemin des Fontanelles crossroads.
(4) Cross it and take the straight path opposite, which separates the moorland on the left from the cultivated fields on the right. You will reach the crossroads at Ruisseau des Gleyses.
(5) Take the path on the left that runs alongside Ruisseau des Gleyses, which is actually a ditch at this point. Walk straight along this ditch to reach another crossroads.
(6) Cross the stream and continue along its left bank. When you reach a crossroads, follow the markings on
a small oak tree marked with a blue paint spot and two green rings. Further on, you will find the Chemin des Fontanelles.
(7) Continue straight ahead until you reach another lake. Follow the path to the left, making sure you stay close to the stream. Then take the footbridge to the right over the stream. Turn left and follow the same route as on the way there to return to the Parking des Sources car park (S/E).