From Oloron, take the Chemin de la Gravette, then at the three-way junction, continue along the middle road. Park along the tarmac road.
Please take care not to obstruct traffic or disturb local residents.
(S/E) At the end of the tarmac road, between two properties, you will see a track suitable for vehicles. Take this track. Continue for about 450 m. You will come to a sharp right-hand bend and a junction with a path marked in yellow.
(1) At this junction, you will find a narrow forest track (marked in yellow). Take it. Continue straight ahead uphill for about 2 km until you reach a junction.
There are two paths: one going uphill to the right (the return route) and one going downhill to the left.
(2) Take the path leading down to the left and follow it. You will walk on flat ground, skirting the oppidum to the south. At the western end, you will reach a crossroads.
(3) Ignore the tracks leading down to the left. Continue rounding the Oppidum de César to the north (unmarked). Further on, an information panel provides a detailed description of the site. Keep going. Without realising it, you have walked all the way round Camp de César. You are now back at the junction of the circular oppidum.
(2) Turn left and head back down; you will then retrace your steps and begin the return leg of the walk until you reach the track and the car park (S/E).