Park in the Col de Châteauneuf car park.
(S/E) Cross the D815 road with care and head for the track on the opposite side. Signpost 816 directs you towards Terre Forte. Continue uphill along this track to reach this hamlet, where there is a house.
(1) After the house, the path begins a long left-hand bend, running alongside a fire water reservoir. Take the path leading uphill.
(2) Cairn. At this barely visible junction of paths, turn right. This marks the start of the Crête de l’Infernier ridge walk. Continue until you reach signpost 815.
(3) Turn right towards Colla Bassa, and follow the wooded path to marker 219.
(4) Continue left, heading due north, towards Colla Bassa.
(5) Cross the track known as Terra Forte and continue straight ahead along the steep, wooded path.
(6) Marker 218, La Colla Bassa, Alt: 888 m. Go back about twenty metres and turn left, heading due south, at the first bend in the path, as the path is somewhat hidden by the vegetation, but there is a cairn there.
(7) At this next bend in the path, a few cairns help with navigation. At the second left-hand bend, the path leads downhill.
(8) Cairn. Head off to the right, staying on the main path which leads out at the building in the hamlet of Terre Forte. Here, turn left for about 20 metres.
(1) Blue markings on a small boulder. Turn left and follow the path through the heath and over the rocks. Follow these blue markings – which are faded but still clearly visible – as far as the Croix du Midi.
(9) The Croix du Midi, overlooking the village of Châteauneuf.
(10) Head down off the path due west, using the Visorando app, zigzagging through the vegetation, then skirting a scree slope, before rejoining the path. At this point, turn left to reach the car park. (S/E).