Lac Vert loop via the Coume hut

Date of your route : Oct 21, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

The route is very well marked, so you don't need a GPS! The trail isn't very "easy going" (lots of rocks) but it's not difficult either. The view when you arrive at the lake is wonderful. The estimated time is a bit optimistic. Still, it was a lovely day.

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Date of your route : Sep 14, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful hike with few other hikers, a few sections that are a bit challenging but overall it's fine. Six hours with a 30-minute lunch break. Return via the Gouffre d'Enfer (Hell's Abyss), don't miss the fork to the left, it's not much longer but it's worth the detour.
Next time, take the fork towards Lake Charles and Lake Bleu, which are a little higher up.

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Date of your route : Jul 13, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Very few people on this well-marked trail, thank you for the route map

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Date of your route : May 19, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

Magnificent hike! The waterfalls are truly beautiful and the lake is fantastic. I did this hike in May, there was snow at around 2,000 metres, so I recommend good shoes, as the return was more technical. The handrail has been repaired.

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Date of your route : Aug 05, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Hike done in mid-July, perfect weather, no difficulties. Be careful, however, of the flocks of sheep guarded by two unfriendly sheepdogs near the Coume hut on the day we were there. The shepherds who were there let us pass by keeping their dogs back, but without them, we would have had to take a detour.

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Date of your route : Jul 23, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Magnificent hike! I did it with my dog, no major difficulties. Beautiful scenery all along the way, a few access points to small streams to cool off the dog, but bring water.
The outward journey is easy, but the return can be tricky in places with large rocks and some steep slopes.
Excellent!

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Date of your route : Sep 24, 2023
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 in fine weather with clear blue skies. At point 8, the handrail was loose but it was no problem to get past. There were some stunning views between points 5 and 8

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Date of your route : Sep 14, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

Beautiful views throughout the hike.
The handrail at the 8 was repaired (a small makeshift repair, but it does the job )
The green lake is perfect for a lunch break.
This hike is classified as difficult, and rightly so. Be sure to wear good shoes and bring something to eat and drink.

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Date of your route : Sep 04, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful hike in the Lys Valley. No problem parking when we visited. It climbs straight up and is therefore steep, with a 1,000-metre elevation gain over the first 5 km, if my calculations are correct. However, it is not difficult, and everyone can find their own pace. Note that there is a source of drinking water (resurgence) after the Coume hut. The arrival at the green lake is magical, especially when the sun magnifies its colour. The particularly mild weather helped: the section described as tricky in 7 and 8 was easy, but things must be different in wet weather or when there is snow😰. The handrail in 8 is no longer there, but it wasn't necessary when we were there. In the end, Visorando gave us a total of 11.7 km in 4 hours and 42 minutes for this superb hike. Many thanks to the author for the route!

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Date of your route : Aug 07, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Magnificent natural lake! We loved the landscape. Reasonable number of visitors. The climb is well shaded for most of the way (we went up in the morning). The return journey between points 7 and 9 is technical, with quite a lot of rocks and some sections where you need to use your hands! In my opinion, not suitable for children under 10-12 years old. Thank you for sharing this route. On the way back, at point 1, we turned left towards the Gouffre d'enfer, so the return was a little different, further west but easy to find back to the car park. We walked for about 5½ hours and climbed a little over 1,000 metres.

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hello, is it possible to camp here? Thank you

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Date of your route : May 30, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A lovely route for Pentecost. A beautiful climb, partly bordered by the river, then waterfalls and finally the lakes at the top. Very well signposted on the way up, but the return between points 7 and 9 is not signposted and can become very slippery in wet weather. Several small streams had formed following recent snowfall. This section is more difficult, and I recommend returning via the same route as the climb.

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Date of your route : May 07, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A wonderful hike despite the rain and clouds that spoiled the scenery a little....

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Date of your route : Apr 10, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

not a difficult route apart from the +950...
however, at this time of year, there is snow at the end, which is doable with crampons... but still...
and the green lake isn't green, it's frozen... to be redone in summer...!
return via Gouffre d'Enfer, a must-see!

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Date of your route : Aug 31, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful hike for those who enjoy streams, waterfalls, the great outdoors, and climbing.
We had a wonderful time, and the weather was perfect. The climb (starting at 8:30 a.m.) was in the shade. After that, it was pure pleasure.
The resurgence, next to the shepherd's hut at Lac des Graues, is surprising, with water being pumped up by solar panels.
The lower end of the green lake is starting to be overgrown with aquatic weeds. Let's hope it doesn't spread too much.
The section towards the handrail (broken) needs a little attention, but nothing major.
For the path after the ford, turn right about 20 metres before the end of the path.
All in all, it's a really beautiful walk, provided you're in good shape.

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