Park in the car park before the bridge at Goumois, on the French side.
(S/E) Cross the bridge into Switzerland. You’ll see the Rocher du Singe on your left.
(1) Go through customs and, on your right, take the road uphill until you reach a junction. Head towards Le Theusseret until you come to a path on your right – the path leading downhill, towards Le Theusseret.
(2) Enter the forest, follow the River Doubs and pass the Seignon water sports centre to reach a forest track.
(3) Carry on straight ahead, keeping to the right, until you reach the restaurant at Le Theusseret, with its lovely waterfalls.
(4) Cross the small bridge and, on your left, start the climb up ‘Chez le Bolé’; a challenging but not dangerous path. There are chains and several ladders. A magnificent view halfway up (as well as a viewpoint on the way there and back).
(5) Take the path on your left towards Les Sommêtres. Another long, gruelling climb awaits you. Ignore all the paths on your right. Continue climbing. Pass through a gate with two wires, which open easily, then another passage to exit the forest and reach the junction at the refuge.
(6) (You can, as a detour from the main route, make a 20-minute round trip to the Refuge des Sommêtres.) Take the path downhill towards Muriaux.
(7) Keep to the right to reach Muriaux.
(8) Turn left towards Muriaux Village.
(9) On leaving the village, keep to the left, heading towards Goumois.
(10) Leave the road and take the path leading downhill. Ignore all the paths on your left. The route is very well signposted; it’s impossible to go wrong. Take care in wet weather, as the descent is long and very steep. You’ll come to a road.
(11) Keep to the right and take an uphill path. This is the last climb of the day.
(12) At the fork, follow the path downwards, towards Goumois.
(13) Take care: cross the road and take the path leading downhill opposite. The path is narrow. Then ignore the path on your right.
(14) At the junction, continue down the forest track. Ignore the path leading uphill on the right. You’ll arrive at Goumois and follow the road downhill to reach the bridge, then the car park (S/E).