To return to the starting point, Chemin de la Tuillerie, cross the Loue at Ornans via the Nahin bridge opposite the gendarmerie. Then turn left at the fountain on Rue de l’Isle aux Prêtres until you reach a junction marked by a wayside cross, and finally turn right onto Chemin de la Tuilerie until you reach another junction. Park on the triangular patch of grass.
Along the entire route: yellow-blue markings, with a large section unmarked.
(S/E) Facing the fork, take the left-hand path, accompanied by the murmur of the stream. After a small bridge, you’ll enter a pine forest with the pleasant scent of sap and come to a three-way junction.
(1) Turn right despite the cross, leaving the markings behind, onto the stony path which runs alongside the Vau Narbey stream for a good while. This path narrows, and further up, guided by the sound of the waterfall (which you’ll catch sight of through the foliage), look out for a track that descends to the right towards the first waterfall of the Peusse.
(2) Leave the waterfall and continue along this beautiful path for just over 300 metres until you spot the sign (facing the opposite direction to the walk) inviting you to descend via a stony path on the right towards the second waterfall, the most beautiful one. Carefully walk around it, passing under the limestone arch to appreciate its wild beauty.
(3) Return to the path and continue uphill; you’ll soon come to a fork. Keep right towards “Chantrans – Baume Bourla”. At times, the path merges with the stream bed. There are few signposts, but don’t be alarmed; the landscape becomes a bit wild, but you’ll soon come across steps climbing steeply to the right. At the top, you’ll come out onto a wider forest track.
(4) Continue to the right towards Chantrans, staying on this well-marked path. It joins the small tarmac forest road to Châtillon, which you follow to the right for 200 metres until the first bend.
(5) Then turn left onto the forest track that descends into the woods, joining a small stony road. Keep left for about fifty metres, then immediately turn right down a path, soon hearing the murmur of water again and reaching a fork (sign for the hunting reserve on the right).
(6) Head down to the left (sign for Baume Bourla, opposite the direction of the walk) to discover this superb wild spot where the stream plays amongst the rocks. The path merges with the stream’s course. Caution! The rocks are slippery (walking poles are essential). If the path is impassable (due to water), head back up towards the signs and take the path down to the left (see note in the Practical Information section).
As you leave the cave, turn right onto the path that runs alongside the Eugney stream, surrounded by old, moss-covered trees leaning towards you.
(7) Ford the stream several times, if you don’t mind getting your boots a bit wet (and if the flow allows it), or follow it along a small marked path on the right. The path widens and the stream will accompany you pleasantly until you reach a small bridge.
(8) Continue to the right until you reach the starting point (S/E).