When you arrive in Royer, the car park is next to the village hall (signposted). A dozen parking spaces are available.
(S/E) Leaving the car park, turn left up Route de Brancion.
(1) At the bend, take the track in front of you (signposted PR®). At the next junction, take the track on your right. Stay on this forest track (you'll see several footpaths on either side of it).
(2) At the next junction, turn right to join the GR®76A. At the GR®, turn left and follow the markings straight ahead for about 1.5km, then turn right until you reach the tarmac road 150m further on.
(3) Take the path to the right and follow it to the Four de la Baume cave. To reach the cave, climb the wooden steps, then go back down the path after the cave. Take the GR® to the right. Follow this path to the asphalt road. Before you reach the road, you'll see a path marked Brancion on your left. Leave this path, which you'll take on your way back from the Chapelle de Brancion.
Cross the D159 and take the road in front of you. You will pass a wash-house on your right and continue straight on until you reach the church. At the church, turn left.
(4) At a house, take the path on the left with the wooden sign "Chemin des Sœurs". Go through a gate and straight on to reach the D159 road. At the road, turn left and follow it down to the crossroads you left before.
Turn right, then right again at the Brancion sign on a white signpost, and follow this path to the medieval village of Brancion. When you reach a small square in Brancion, turn left up the street to the chapel. There's a fine view over the valley and the village of La Chapelle-sous-Brancion below. Go back down the street that leads to the village's former covered market (halles) and you'll arrive opposite the château. Follow the road to the right and pass under the porch.
(5) After the porch are public toilets and drinking water. Take the 2nd path on the right (the first is immediately around the bend after the porch). Take this path, cross the road and take the path opposite. Cross the D14 and take the path opposite. One kilometer further on, you'll reach the GR® road.
(6) Turn left, following the PR® signposts, and stay on this forest track which leads to Martailly-lès-Brancion.
(7) Follow the road on your right, passing a fountain, the post office and another fountain. Go left towards the cross and turn right just before it. Go straight ahead at the first junction and turn left at the second. You will pass a stone carver and should follow this road to the main road. Cross the main road and take the road on the left, beside the cemetery. Leave the left-hand path and continue straight on to the next crossroads.
(8) At this junction, take the left-hand path through the undergrowth to the tarmac road. Turn right and follow this road to the Royer car park (S/E).

. Now corrected. Thank you.