To get to the starting point, head towards the village of La Chaux du Dombief (39150). Turn to pass in front of the church and follow the signs for Chalet René Jacquemet via the Grand Rue, then the Route Forestière (RF) de Prénovel. Park at the René Jacquemet chalet.
(S/E) From the car park, walk up the road towards the south-west for about 100 metres to find the first of some 150 cairns that mark the route, allowing you to follow the trail like a treasure hunt. The path reaches a first clearing with a small rest area under a pretty patch of beech trees.
(1) Continue to the left and then climb north-west to reach thefirst viewpoint at the highest point. Here you can enjoy a pleasant view of Mont Blanc, part of the Alps and the Jura, Risoux and Risol mountain ranges.
(2) Continue in the same direction to reach asecond viewpoint offering the same panoramic views, with the added bonus of Lac d'Ilay, Pic de l'Aigle and thefirst plateau.
(3) After a slightly steep rocky section, walk along the cliffs of Chaux du Dombief.
Be careful here: do not leave the path or go near the cliffs, and remain vigilant if you are with children.
Then continue south-west to reach the pastures. Cross a pretty wooden footbridge, then follow the path to return to the crossroads you passed on the way up.
(1) Retrace your steps to return to the Chalet René Jacquemet car park (S/E).