(S) Parking in Ornans opposite the gendarmerie, at the bottom of the statue of Perenot de Grandvelle.
Head towards the old stone bridge over the Loue. At the fountain, turn left up Rue de l'Isle aux Prêtres (GR®595, yellow-red markers) towards Cascades de la Peusse. On your left, you will see Roche Bottine and Roche Lahier.
(1) At the foot of the calvary, turn right onto Chemin de la Tuilerie, still following the yellow-red and yellow-blue markers. After 600 metres, at a place called La Tuilerie, stop to see an old fountain in front of an old farmhouse.
(2) After several huts, you will come to another fork marked by a hiking signpost. Turn left. About 50 metres further on, after a small wooden hut, head towards the stream to see a small waterfall. Return to the path and follow the signs. After a small bridge, you will enter a pine forest with the sweet smell of sap.
(3) The path joins another path at a right angle. I was thinking of suggesting that you turn right to climb up to the waterfalls, but since 2012, the path has unfortunately been closed to hikers due to the risk of rockfalls from an unstable rock. So, let's be careful and go left as advised by the signposts. This 500-metre-long farm track may be a little muddy after a period of rain. At the end of this half-kilometre stretch, you will climb the hillside via a pretty, slightly steep sunken path. Follow the signposts carefully, noting the connecting paths that are closed off by crosses, and keep right at all times.
(4) At a fork in twoGR® trails, keep right towards Chantrans-Cascades de la Peusse (yellow-blue markings). At the end of the path, you will be greeted by the murmur of waterfalls.
(5) You will rejoin the path that was closed to us and the first waterfall that I stupidly missed (post some photos). According to phlippe2552 in his hike Cascades de la Peusse à Ornans: "At one point at the crossroads indicating Les Marches on the left, turn right. Go about 100 metres and you will see a sign for Cascade de la Peusse on your left. Go down the path to see it."
(6) Go back up and down on the left for about 500 metres and a sign invites you to go down to the left for another waterfall. Go around it carefully, as the path is slippery. Turn back and go up to the crossroads, then continue straight ahead towards Chantrans-Baume Bourla. You will be accompanied by the murmur of the water. At certain points, the path merges with the stream bed, which you continue to follow straight ahead. There are few signposts, but don't worry, the landscape becomes a little wild, but you will soon discover steps climbing up to the right.
(7) At the top, you will come to a wider forest path which you follow downhill to the right (sign for Chantrans-Ornans-Baume de Bourla), yellow and blue signpost. This joins the well-graveled forest road to Châtillon, which you follow to the right.
(8) After 200 metres, at a 90° bend, leave the road and turn left onto a path, following the signs and signposts. At a crossroads marked by an ONF sign No. 36, continue straight ahead, following the signs.
(9) You will come to a new forest road. Turn left and, 100 m further on, turn right down another path. You will soon come to a fork. Turn right again. At a clearly visible "Réserve de Chasse " sign, you will see markers and signs. One will tell you to go down to the left towards Baume Bourla. The path merges with the stream. Be careful! The rocks are slippery (walking sticks are necessary). If the path is impassable (due to water), go back up towards the signs and take the path on the left (see note in the Practical Information section).
(10) At the exit of the cave, take the path on the right that runs alongside the Eugney stream. The signposts will take you back to the Chemin de la Tuilerie.
(2). Return along the path you started on to quickly reach the old bridge and the car park.
Good shoes, or even waterproof walking boots and walking sticks are necessary, as the path is rocky with wet and slippery rocks. At certain points, the path merges with the stream bed.