The Allos Lakes Trail

A hike to discover four glacial lakes among chamois, ibex and marmots!

Details

102128
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  • Walking
    Activity: Walking
  • ↔
    Distance: 12.57 km
  • ◔
    Average duration: 5h 20 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 598 m
  • ↘
    Descent: - 602 m

  • ▲
    Highest point: 2,657 m
  • ▼
    Lowest point: 2,108 m

Photos

Description of the walk

Park at the Laus car park on the road to Lac d'Allos. Parking is regulated: check with the tourist office.

(S/E) Follow the signs for Lac d'Allos, pass the Maison Forestière du Laus and continue to a fork in the road.

(1) Turn left onto theGR®56Band follow the signs for "Col de la Petite Cayolle". Continue straight ahead at the first intersection, leaving the path on your right, which will be the return route.

(2) Continue to a crossroads.

(3) Leave the path on the right and go straight ahead on the trail that heads north and joins a new intersection.

(4) Turn right. The trail passes Lac de la Petite Cayolle.

(5) You will quickly reach the pass of the same name.

(6) At the pass, turn right to go around the lake on the heights. Follow the signs for "Lac des Garrets, Pas du Lausson".

(7) After skirting Lac des Garrets on the left, the trail climbs back up to the ridge, passes just below the Sommet de Lausson and ends at the Pas du Lausson (altitude 2,602 metres).

(8) Turn right and follow the signs for Lac d'Allos. You will rejoin theGR® trail you took on the way up.

(3) Turn left and continue to the next junction (elevation 2,259 metres). You now have two options.

(2) Either continue straight ahead on the path uphill to return to the car park or, if you still have energy, follow the sign for "Refuge du Lac d'Allos" on the left to reach the refuge.

(9) The spot is worth a break to enjoy the view of the lake, and why not grab a snack at the lake refuge? You can spend the night there (by booking in advance, of course) and set off on a new hike the next day.
After the refuge, leave the trail that heads south-east and goes around the lake to take the interpretive trail that will take you back to the first fork.

(1) Turn left to return to the car park where you started (S/E).

Waypoints

  1. S/E : km 0 - alt. 2,112 m - Parking at Laus on the road to Lac d'Allos.
  2. 1 : km 0.94 - alt. 2,169 m - Fork GR56B
  3. 2 : km 1.91 - alt. 2,264 m - Fourche
  4. 3 : km 2.72 - alt. 2,351 m - Crossroads
  5. 4 : km 3.51 - alt. 2,433 m - Intersection
  6. 5 : km 4.42 - alt. 2,591 m - Lac de la Petite Cayolle
  7. 6 : km 4.71 - alt. 2,634 m - Col de la Petite Cayolle
  8. 7 : km 5.5 - alt. 2,635 m - Lac des Garrets
  9. 8 : km 6.71 - alt. 2,601 m - Altitude: 2,602 metres - Pas du Lausson
  10. 9 : km 10.72 - alt. 2,246 m - Lac d'Allos - Refuge du Lac d'Allos
  11. S/E : km 12.57 - alt. 2,112 m - Parking at Laus on the road to Lac d'Allos.

Notes

This hike is very well marked, so there's no chance of getting lost.
Bring plenty of water; there are no supplies once you start the hike. You can eat at the Lac d'Allos hotel/refuge at the end of the trail. Bring a windbreaker and a fleece because even in the middle of summer at 2,630 metres, it gets cold, especially if there is a breeze...
Other than that, bring the usual gear: good shoes (high tops), walking sticks... and, most importantly, binoculars and a camera. Bring a sketchbook and pencils for your kids... Mine are 8 and 9 and had a blast drawing and taking pictures.

This route passes through a protected area, which may be subject to special regulations:

Worth a visit

You are in a nature reserve, so be careful not to disturb the animals. If you stand still, you will see lots of marmots, chamois and ibex. The flora is magnificent and I recommend taking a small guidebook with you (I don't know much about plants). Reminder: you are not allowed to take anything away, as it is a nature reserve! In short, a magnificent hike!

Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.9 / 5
Based on 76 reviews

Reliability of the description
4.8 / 5
Ease of following the route
4.8 / 5
Route interest
4.9 / 5
Margot Rbt
Margot Rbt

Overall rating : 5 / 5

Date of your route : Oct 04, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A magnificent route that took us past three beautiful lakes. After point 8, we discovered a breathtaking view of Lake Allos. We also saw lots of marmots and a herd of chamois. However, you need to be very careful about the wind. It was mentioned in the comments, but from point 5 to point 8, the wind was extremely strong. I therefore strongly advise you to wrap up warm. A windbreaker, hat and gloves are welcome on this section, especially in October. In any case, for me, this hike remains a must in the Val d'Allos. We loved it.

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User 21976924

Overall rating : 5 / 5

Date of your route : Sep 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Great hike, the lakes are worth the detour! We saw a few animals. Bring a jumper for the upper part, as the wind blows strongly! For people who are VERY sensitive to heights, a passage at the first lake may be problematic (I had trouble), but nothing too serious If you are only spending one day in Allos, this is THE hike to do! Impossible to get lost, beautiful scenery...

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User 8007013

Overall rating : 5 / 5

Date of your route : Aug 17, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Great hike where you can see marmots and ibex even in August!
The view of Lake Allos from the Pas de Lausson is magnificent!
It's a shame that access to the Laus car park isn't possible... which means a 21 km hike! (4 km between the two car parks)
But I highly recommend this tour, which allows you to discover the reserve and get a different view of Lake Allos.

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ferrara
ferrara

Overall rating : 4.7 / 5

Date of your route : Aug 18, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

i love this route; the scenery and the lake

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Jacques_Anne-Claire
Jacques_Anne-Claire

Overall rating : 4.7 / 5

Date of your route : Jul 01, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful hike at the beginning of July 2025. Very few people, lots of marmots and a few ibexes. No difficulty following the route.

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Patrick V2
Patrick V2
• Edited:

Overall rating : 5 / 5

Date of your route : Aug 28, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Nice walk at the end of August 2024, very well described and with the GPS track it's easy. On the downloaded track, there was no indication of the direction of the route (which is a loop) but on reflection it's easy to guess. Maybe it was my GPS app (Alpine Quest) that didn't show it (?). So take the path that rises to the left on the track leading to Lac d'Allos. It's a fairly long walk, but easy because the path rises very gradually.

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pblmrm
pblmrm

Overall rating : 5 / 5

Date of your route : Aug 19, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very nice walk around the lake
Good alternative to Mont Pellat if you're too tired

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Mam06
Mam06

Overall rating : 4.3 / 5

Date of your route : Jun 27, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

This hike on a beautiful day was a nice surprise. Surprised to see the lakes at 2600m still frozen at the time.
Lac d'Allos was as beautiful as ever, but very crowded.

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sylvie couriol
sylvie couriol

Overall rating : 5 / 5

Date of your route : Aug 21, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

It's a magnificent hike, and we really enjoyed it! At the Col de la Petite Cayolle, we saw some ibex. The views are superb.
The winding ascent is very easy.
Definitely worth doing.

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reveil85
reveil85

Overall rating : 5 / 5

Date of your route : Aug 13, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Lovely walk, great views! Quite busy of course (even if you start early) but superb scenery!
Carried out from the Cuilte car park because Le Laus was booked with reservations, so it takes longer of course but it's OK.

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Alain Ghione
Alain Ghione

Overall rating : 5 / 5

Date of your route : Aug 21, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

It was a very nice hike with marmots, chamois and ibex. With no major difficulties, we did it with a 6-year-old child and completed the hike with a bivouac around Lac D'Allos.
Very practical booking at the Laus car park.
Definitely worth doing.

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patrick.sicsic
patrick.sicsic

Overall rating : 4.7 / 5

Date of your route : Jul 25, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Please note that during the summer period you need to book the car park. They close the reservation website the day before at 5pm, because there is a very poor network connection at the car park, and so as not to distort the calculation of available spaces, they make the site inaccessible (error when requesting a reservation!!).
Local tip: if at the start of the junction in Allos, the parking sign says "Sold out", and you haven't booked, forget it... (11km for nothing)
Enjoy the walk...

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Prapic13
Prapic13

Overall rating : 3.3 / 5

Date of your route : Apr 24, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

Hello, this description is difficult to apply in the field. I used a local map.

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Ggp777
Ggp777

Overall rating : 5 / 5

Date of your route : Nov 13, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very, very nice hike, very, very nice hike, with the only difficulty being the sections of path in the shade (3 or 4) which were icy at the time and required special attention and cramponed shoes in those places (I had smooth-soled trainers 🙈 ).
There was snow but it was crunchy so easy as it was not slippery.
Marmots in hibernation but plenty of ibex and chamois.
Access to the Laus car park is closed at this time of year, so it takes 45 minutes longer to get up from the Cluite car park.
Magnificent golden colours of the trees, especially in the morning or before sunset.
A pleasant picnic by the second lake, Lac de la Petite Cayolle, which is icy at the moment.
Magnificent views over the valleys and Lac d'Allos on the descent.

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danielaime06
danielaime06

Overall rating : 5 / 5

Date of your route : Nov 02, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful hike, long but without any major difficulties.
However, in autumn, some of the rocks are slippery with frost in the morning and there is already a little snow on the paths, so be careful.
Also due to the onset of the cold season, we didn't see any marmots and the Lac d'Allos refuge was closed.
But all that was forgotten when we admired the golden colours of the trees, the blue of the lakes and the daring ibex!

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