To reach the starting point at the Cap de la Serre car park: coming from Ossen, in the village of Ségus at the crossroads, turn left towards Boustu.
Park in the car park.
(S/E) Look out for the signposts and, below the car park, take the track heading west, marked in red and white (GR®101). After a few bends, the route is easy to follow along the bottom of the Batsurguère valley, where the Latée stream (sometimes above ground, sometimes underground), the Glaire stream and the Boustu flow.
(1) At the small hamlet at an altitude of 769 metres, turn right along a hedge and, after crossing a cattle grid, turn left a second time. The ascent begins.
The trail stays on the mountainside, below the Soums du Montné and Aserole, on the left bank of the Latée stream. On the climb, you will find the signpost marking the entrance to the Pibeste-Aoulhet reserve.
Below the Bois de la Sirote, the path winds its way up a steep slope, then heads off to the south-west. Several ridges hide the pass from view for a long time, until the last one disappears and it appears in all its summer greenery (or snow-covered whiteness).
Up there, the landscape is blocked to the south by the Soum du Prat d'Aürelh ridge and to the north by the Pènes du Montné ridge. On the right, you can see the roof of the hut, about thirty metres higher than the pass.
(2) The Cot du Prat du Rey hut is open all year round. It is reserved primarily for shepherds, but if there are none, hikers and hunters can take shelter there.
If you haven't been to the cattle park in the middle of the pass, stop by before you leave
(3). There you will find a signpost indicating possible routes for the hike (elevation 1185).
The return journey is via the same route back to the car park (S/E).