Tour of Rey Mountain from Castet

Montagne du Rey, whose highest point is Soum de las Picarras (1,349 m), is the first peak in the Ossau valley and offers a superb 360° panoramic view from the Pau plain to the Pic du Midi d'Ossau.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 10.45 km
  • ◔
    Average duration: 5h 20 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 809 m
  • ↘
    Descent: - 807 m

  • ▲
    Highest point: 1,341 m
  • ▼
    Lowest point: 811 m

Photos

Description of the walk

Park at Port de Castet.

(S/E) Start by following the road you came on, heading north-west. Ignore a path on the right that leads to private property.

(1) Immediately afterwards, leave the road by turning right (Route du Port). Go through the gate and at the end, turn left. At the next fork (altitude 950 m), continue straight ahead. Turn around for a superb view of the valley.

(2) Be careful to take the left: easy passage. On the right (no GPS track), the passage is very tricky for inexperienced hikers. After leaving the woods, climb steeply to reach an unnamed pass.

(3) Then turn right to climb up to Soum de las Picarras, which you can see from this spot. The ascent is along a ridge on a stony, unmarked path. From the summit, there is a superb 360° view.

(4) Return to the pass.

(3) Descend to the right via the steep north face. Turn left at the hairpin bend to join a wide forest path.

(5) Follow it to the right and join.

(6) Take a narrower path on the right that climbs back up to the Deus Coïgts Pass. The Tour du Rey path continues on the left, but I prefer this small path, which is well marked in yellow and red. At the next junction, keep to the right, continuing in the same direction.

(7) Arrival of the alternative descent from the summit (not shown on IGN but present on OSM). Col Deus Coïgts is not far away. Continue straight ahead.

(8) Cabin and arrival on the Deus Coïgts plateau (altitude 1,020 m). Descend gently towards the south. The markings disappear, but by following the wide path that crosses the plateau, you will easily find them again at the entrance to the forest.

(9) Keep to the right and continue downhill.

(10) Turn right onto the path, which follows the contour line and is therefore relatively flat.
An alternative is to follow a narrow path above the La Pomme stream, which winds its way through the ferns. This will take you to (S/E).

Waypoints

  1. S/E : km 0 - alt. 868 m - Parking - Port de Castet
  2. 1 : km 0.61 - alt. 835 m - Fork
  3. 2 : km 2.08 - alt. 1,017 m - Tricky junction
  4. 3 : km 2.73 - alt. 1,289 m - Unnamed pass
  5. 4 : km 3.01 - alt. 1,341 m - Soum de las Picarras
  6. 5 : km 4.56 - alt. 884 m - Forest path
  7. 6 : km 5.36 - alt. 811 m - Three-way junction
  8. 7 : km 7.23 - alt. 1,091 m - Junction with alternative trail
  9. 8 : km 7.62 - alt. 1,027 m - Cabane
  10. 9 : km 8.45 - alt. 999 m - Junction
  11. 10 : km 8.98 - alt. 976 m - Crossroads
  12. S/E : km 10.45 - alt. 870 m - Parking - Port de Castet

Notes

There is no water source, but the route is well wooded.

This hike is classified as difficult because the average gradient on the last kilometre to reach the point (3) is 40%.

(4) To descend, there is a difficult alternative route continuing eastwards and following the ridge to point (7). The trail is not shown on the IGN map but is present on OSM. This alternative route includes a tricky section, especially in wet weather, on the Garrocs ridge at 1,300 m with a steep slope. Walking poles are highly recommended!

(8) An alternative is to follow a narrow path above the Ruisseau de la Pomme stream, which winds through the ferns and leads directly to (S/E).

Reviews and comments

4.6 / 5
Based on 7 reviews

Reliability of the description
4.9 / 5
Ease of following the route
4.9 / 5
Route interest
4.1 / 5
User 26512277

Overall rating : 5 / 5

Date of your route : Apr 07, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A popular and well-signposted route.

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User 6328730

Overall rating : 4 / 5

Date of your route : Nov 03, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful, very varied and easy-to-follow hike. The beautiful view from the pass over the mountain range and the Pau plain, after a very steep 400m climb, rewards the effort.
However, the alternative route along the La Pomme stream is not well signposted and this path, overgrown with tall, dry ferns in autumn, was not very pleasant.

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Jean-Louis TOR65
Jean-Louis TOR65

Overall rating : 5 / 5

Date of your route : May 03, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

My wife and I (and Noisette, our dog) did this route, following the two suggested variations (descent via the Crête des Garrocs and the La Pomme stream). It is a magnificent route, very varied with superb views of both the plain and the mountains, with the Pic du Midi d'Ossau in the background. The view was enhanced by the fresh snow that had fallen in the previous days at altitudes above 2,000 metres. The climb to Col Sans Nom is very steep over a 400-metre elevation gain and not very pleasant. It was quite busy with trail runners that day (hello knees!!!). But what follows is splendid, with the acrobatic route along the very wild and difficult Garrocs ridge, which is rocky, then you cross superb beech forests untouched by man, with mossy rocks in a solitary and strange atmosphere. The route is marked with cairns and follows a ridge, so in principle you can't get lost (well, you still need to be a bit of a mountaineer...). Then you find the marked path again and a pretty trail that runs alongside the La Pomme stream, which is very pleasant with its springs and drinking troughs.
It was a really beautiful day with mild weather, neither too hot nor too cold, neither too sunny nor too cloudy. A dream come true!
On the way back by car, we visited the Auga bog between Louvie-Juzon and Pédestarrès (which we had seen from the Garrocs ridge). It's a beautiful natural site that's perfect for observing wild animals and plants. We were lucky enough to meet Erick Kobierzycki, an ornithologist specialising in Egyptian vultures, who gave us lots of information. Many thanks to him.

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verrat.michel
verrat.michel

Overall rating : 5 / 5

Date of your route : Oct 09, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

In fact, it is marked in yellow, so you just have to follow the signs.
I found the climb very, very hard but beautiful.
Well, I'm 75 years old, so maybe that had something to do with it.
I have a weak knee and I forgot my knee brace, so I suffered a bit on the first part of the descent before joining the GRP.
On the other hand, the trails at the end of the route are superb.
Not to mention the splendid 360° panorama from the summit of Las Picarras.

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Aluk
Aluk

Overall rating : 3.7 / 5

Date of your route : Jul 12, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★☆☆☆☆ Very disappointing
Very busy route : No

Let's start with the positive: we didn't meet anyone on the hike. The description and signposting were spot on.

Now for the rest: the trail was infested with horseflies after an hour's walk in mid-July. The hike was a real ordeal. A very difficult climb to the summit, even though we are experienced hikers, only to end up with a view of the lower Pyrenees on one side, which was okay but nothing special, and on the other side, a view of the large towns in the surrounding area (Oloron, Pau, etc.). The town side is ugly and we unfortunately found that the view from the summit was not worth the effort.

When you can drive 15 minutes further to Laruns and enjoy spectacular hikes, why stop here?
Then again, maybe it was the bad experience with the horseflies that ruined it for us.

We really don't recommend it.

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AGUIRRE Louise
AGUIRRE Louise

To be done on 28 May! So no opinion for the moment!

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Reissner34
Reissner34

Overall rating : 5 / 5

Date of your route : Aug 15, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant route, well marked in yellow with signs and kilometre markers. The steep inclines and descents make it challenging.

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Mamat6440
Mamat6440
• Edited:

Overall rating : 4.7 / 5

Date of your route : Jun 20, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

This hike is certainly spectacular in clear weather, which unfortunately was not the case when the route was completed; otherwise, the site is very pleasant and the viewpoint (S/E) is welcoming for all levels.

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