Moderator update on 06/08/2020: Please note! At (1), this private property is no longer freely accessible. In a comment dated 05/08/2020, Blanche Lck suggests:
Upstream from this gate, 400 metres further down, you will find a sign indicating a hiking trail called ‘Chartreuse de la Verne’. We did not take this route, but we assume that this is the path you should now follow at the start.
Access: Coming from Toulon, turn left as you enter the village of La Môle (at the traffic lights), leave the church on your right and take the Chemin des Guiols.
Follow this road for about 3 kilometres.
(S/E) Park along the road near the hamlet of Les Guiols. (Please note that parking spaces are scarce on this narrow little road.) Walk along the road for 500 metres,
(1) Go through an iron gate. (Sign B 120 – GORBIERE, private road not open to public traffic)
(2) Turn left at the first junction, just before the first house.
(3) Follow the wide track and take the path on the left between the vineyards. Follow the path which runs alongside the vineyards and the river.
(4) Pass a hunting shelter on your left and, 50 metres further on, take the small path on the left. Cross the stream and head up to the right towards the dam.
(5) Join the tarmac road and head uphill towards the dam.
(6) At the junction, turn right towards the dam.
(7) At the second fork, turn left onto the Piste de la Verne and continue until you reach a crossroads at the 95-metre mark.
(8) Stay on the track to the right running alongside the lake and follow it until you reach the gate at the far end of the lake.
(9) Take the green and white-marked track which climbs to the left.
Follow this path up a long climb until you reach the junction with a wide track (altitude 381).
(10) Turn right onto the Piste de Capelude and continue to the Chartreuse de la Verne. (Picnic tables).
(11) Return along the same path to point 381.
(10) Continue along the Piste de Capelude to the altitude of 315 metres, where two tracks meet.
(12) Take the path on the right and descend the Vallon de l’Argentière to the lakeside, then rejoin (8).
(8) Turn right and return to the dam via the same route as on the way out (S/E).
a very pleasant, shaded walk. We didn't visit the monastery as we've already been there