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The car park is on the D104, in Sorques coming from Moret-sur-Loing, 100m before the traffic lights. Car park signposted on the road.
(S/E) From the car park, 100m before the traffic lights, join the D104 and follow it to the left. At the traffic lights, turn right, walk up to the railway line, then go through the tunnel and take the path on the left. Continue along the field and the railway line on this path, which then descends slightly.
(1) Turn right onto a straight path running alongside a copse. This path soon enters the forest and then crosses a small road.
(2) At the start of an uphill section, just before a reservoir, look out for a faint path on the right that starts behind two medium-sized oak trees (and after two large felled tree trunks).
The path runs alongside depressions on the left formed by old quarries and climbs up to the plateau where it leads directly to a magnificent viewpoint and a sandstone table supported by pillars, known as the Table du Roi.
(3) From this sandstone table, take the (only) path leading off to the north-west across the plateau. It soon joins the path you have just left, above the reservoir. The path continues across the plateau then descends to a crossroads.
(4) Turn immediately right at a sharp angle and follow the Route de la Grande Vallée for about 1 km.
(5) At the first crossroads, turn left up a small slope (Route Desquinemare) and cross a sort of old stone wall. At the next crossroads, turn immediately left onto the path (Route des Carrières, no sign) which runs along the ridge of the Long Rocher, which you previously walked along in the opposite direction. At the top of the climb, on the right, look out for a beautiful overhang formed by an old quarry. The path then descends and veers to the right (ignore the path going uphill opposite) to join the Route de la Gravine.
(6) Take this road on the left (ignore the Route des Carrières which continues straight ahead). At the next junction, continue slightly to the left along the Route de la Gravine, which very quickly crosses the Route de Varsovie, then, after the climb, joins the Route du Roi de Pologne, which then leads onto the Route du Croc Marin coming from the left, which you follow.
(7) A little further on, in a flat, somewhat barren area, the path turns north: this is the Route du Haut Mont, which joins the Route du Languedoc shortly afterwards. Take it to the left. It winds its way a short distance from the northern edge of the plateau. You will then cross the Route de Fontainebleau at Montigny and, very shortly afterwards, join the Blue Route No. 11.
(8) Take this on the left. It climbs and descends, winds its way through the rocks and then descends into the Vallon des Trembleaux, where it runs alongside the Route de la Grande Vallée.
(9) Where the Blue Trail continues alongside the Route de la Grande Vallée, take the path that branches off to the right, the Route de la Mort. You will then reach the Plaine Verte car park, which you approach via a wooden gate.
(10) Head right to the next wooden gate and take the path that begins there, the Route de la Plaine Verte. You will soon cross, i.e. after about 200m, the Blue Trail No. 11, which you take on the right. Take care at the first bend, which is easy to miss. This path winds its way between climbing rocks (Orange route).
(11) It leads to a stunning viewpoint and then enters a very distinctive narrow gorge where a beautiful Red climbing route is marked out. At the entrance to this section, don’t miss the return arrow pointing to a viewpoint overlooking this part of the route and the ‘gorge’ you are about to traverse. After a narrow passage, the path reaches the edge of the plateau; follow it until you approach the Grotte Béatrix. Follow the blue arrows carefully, as the route reaches the edge of the plateau slightly to the west of the Grotte Béatrix and then joins it.
(12) Descend near the entrance to this “cave” along this path, which then winds its way halfway up the slope. A few bends lead to the bottom of the hillside, directly beneath the local “Little Matterhorn”, which is the Roche Plutus (which you saw in profile on the way down earlier). The path then climbs gradually towards the top of the plateau and, via another zigzag, joins the edge of the plateau a few metres below. It then runs alongside magnificent sandstone cliffs.
(13) At the next junction (signpost for the Blue trails), a fairly steep descent begins on the left, linking routes 11 and 17: take this path, which leads to a crossroads. Continue straight on along Blue Trail No. 17, which climbs to one of the viewpoints of the Haut Mont. There is a bench here and an unobstructed view. Continue past the bench along the Blue Route, which follows the Route de la Canepetière along the plateau. Follow the blue markings carefully, as there are a few crossroads.
(14) The Blue trail leaves the road to the right and heads for the very edge of the plateau: a second stunning viewpoint overlooking the well-preserved remains of a quarry. The trail takes you up a few steps and then descends rapidly into the valley. At the next crossroads, take the Route de la Garenne de Gros Bois diagonally to the right and join the D148.
(15) At this point, a path (Route Biron) branches off to the left; take this path. At the next junction, continue along Route Biron, turning left again. At the next junction, turn briefly right onto Route du Râle and immediately turn right onto Route du Bois Prieur, which joins the D148; cross this road. Continue straight ahead, quickly joining theGR®11/TMFcoming from the left and reaching Route Desquimare. Continue to follow theGR®11(Route des Sablons) to the next junction.
(16) Leave theGR® by turning diagonally right onto Route du Genévrier. Then, at the next junction, turn right onto Route de Marion des Roches. Pass through six junctions in succession and continue until you are 200m from the railway line you crossed at the start of the route.
(17) Before this railway line, turn left onto theGR®13B, which is the Chemin de Larchant à Moret. Walk for about 400m. Then turn right, cross the railway line (bridge), and continue to the next junction where you turn right onto the Chemin de Montigny à Moret, which leads directly back to the D104, a few metres from the car park entrance (S/E).
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Easy 
Moderate 
