Mer de Glace - Toissieux

A short walk off the beaten track. Short but intense at the start, it follows paths that have almost been forgotten, including one along a cliff edge.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 6.30 km
  • ◔
    Average duration: 2h 25 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 217 m
  • ↘
    Descent: - 220 m

  • ▲
    Highest point: 593 m
  • ▼
    Lowest point: 407 m

Photos

Description of the walk

(S) Park your vehicle after passing the old stone bridge, at the start of the path leading to the "La Mer de Glace" climbing site.

Pass the picnic tables and take the pleasant path to the west that winds along the Masse stream. You will arrive at pink granite boulders where two streams meet: the climbing site is the two small cliffs in front of you and to your right. The location is pleasant and cool.

(1) Turn left and you will see the start of the path opposite, on the other side of the stream. In winter, when the snow melts in the Pilat mountains, this stream can have a very high flow (more like a torrent) and may no longer be fordable. In this case, follow the stream along the left bank until you reach a narrow point where you can cross by jumping onto the other rock. You will then join the path that climbs to the left. Follow this path along the right bank of the stream, first in open country and then through pine forest. At this point, the soil is black, sticky and heavy when it has rained. The undergrowth and the steep banks at this point encourage damp and cold conditions.

(2) At the edge of the woods, you will come to the ruins of Raoulet. Climb up to the right through these ruins, leaving a bridge over the stream on your left. Only the framework remains of this bridge. The path climbs immediately (ignore the path that goes straight ahead). Make sure the soles of your shoes are free of sticky mud, otherwise you may slip on the stones during the ascent.
There are no markings here, so you will need to follow the trail, which sometimes climbs steeply and sometimes winds through the moorland. This pleasant trail quickly takes you up to a higher altitude, offering views of the Vivarais mountains, the small village of Toissieux and the few hamlets in the surrounding area.

At the first hairpin bend, which comes up quickly, do not follow the track that goes straight ahead, which is for mountain bikes (or motorbikes?). Take the second hairpin bend on your left, which starts at the foot of a tree. The climb is steep enough that you should not cut across the hairpin bends by following an unstable track underfoot. The route on the IGN map does not follow the actual terrain. Approximately after the third hairpin bend, the trail heads straight ahead (south-east) in the open. In some places, you will notice that this cliff-top path, now little used, was once reinforced with small retaining walls. The path crosses broom bushes and beautifully mossy rocks, revealing seeping spring water. You will also see the soot in a rock cavity, evidence of the terrible fire in 2000 that ravaged several hectares of forest (a barbecue that was not properly extinguished). Looking towards the top, you will see the skeletons of large dead trees in the middle of a nascent oak forest (downy oaks).
The path then climbs steeply to the left through a small group of fir trees (easy to recognise as they are the first ones you will encounter). The path then turns left again to reach a rocky plateau offering a clear view of the Rhône valley. Continue along the path, which descends slightly.
After passing some small walls that supported agricultural terraces (former vineyards?), continue to the left (west-northwest) where the path descends slightly and then climbs again, turning to the right and arriving in front of a rock formation. Descend a little to your left from the rock you are standing on so that you can pass the rock formation on the left. Follow the path, which climbs over the rocks at this point.

(3) When you reach the top of the rock formation, take the slightly wider path on the right that passes over the top and begins to descend towards the village of Toissieux, which you can see ahead. At the end of this path, you will come to a wide path covered in scree, which you should descend with caution. You will come to a wide path, which you take to the left. You will then wind your way down into the valley, cross two streams and then gently climb up the opposite slope towards the village of Toissieux.

(4) You will arrive in the village of Toissieux via the Sauzet climb. Continue straight ahead, going around the church until you reach Rue du Bachat, which you will take on the right, walking along a low wall. You will arrive on Route de Toissieux. Take the road on the right towards Bachelard. At the first house, you will see the Grande Randonnée de Pays trail starting below the road on the right.

(5) Take this red and yellow marked path and descend to the "Châtelard" signpost.

(6). From there, head towards Villevocance and descend to the road. Turn right and return to your vehicle.

Waypoints

  1. S/E : km 0 - alt. 417 m
  2. 1 : km 0.28 - alt. 426 m - Fording - Mer de glace
  3. 2 : km 1.02 - alt. 453 m - Ruins of Raoulet
  4. 3 : km 2.11 - alt. 592 m - Take the path above the rock face
  5. 4 : km 4.52 - alt. 549 m - Arrival at the village of Toissieux
  6. 5 : km 4.79 - alt. 552 m - Start of the red and yellow marked trail
  7. 6 : km 5.93 - alt. 422 m - Hiking signpost "Châtelard
  8. S/E : km 6.3 - alt. 417 m

Notes

Although this route is short, it presents a difficulty when climbing above the ruins of Raoulet for those who do not know how to follow a trail, which is why it is rated "difficult".
However, it is one of the most enjoyable parts of the route for those who love wild, cliff-side trails.
The hiker who created this route does not use GPS, so the route of the climb is based on satellite photos. It may therefore be approximate. It is advisable to follow the description.
Sturdy footwear with good grip is recommended, as well as trousers, at least for the first part, due to the brambles lining the narrow path.

Reviews and comments

4.7 / 5
Based on 14 reviews

Reliability of the description
4.6 / 5
Ease of following the route
4.7 / 5
Route interest
4.8 / 5
combo
combo
• Edited:

Overall rating : 4.7 / 5

Date of your route : Jan 22, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

A very beautiful walk, the first part along the riverbank, then uphill but without any risk. Done in good time.

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Evasun
Evasun

Overall rating : 4.7 / 5

Date of your route : Sep 15, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

I really enjoyed this little walk. In my opinion, the "difficult" rating is not justified; I was expecting much worse for the climb at the start. Even though there are some slightly steep sections, they are short and the climb is gentle and doesn't require too much effort.
As I was crossing Toissieux, a dog chased me and tried to bite my heels because a resident hadn't closed their gate. Fortunately, it was a small dog and no harm was done.

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Annie971
Annie971

Overall rating : 4 / 5

Date of your route : Jul 22, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

I never knew what the Mer de Glace was! But it was a lovely walk. At the start, when you walk along the stream, there's a rocky platform where you can swim. Magnificent views.

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Charlie07
Charlie07

Hello
Do you think the trail would have been described as "wild" if it had been marked? This route was published in 2015. The authors do not necessarily return to the site to update a route they created several years ago, especially when they have moved away from the area. These routes are created from scratch to get off the beaten track (trodden by so many hikers). If you want a marked route, pay attention to the explanations that indicate whether or not there are markings. Its "difficult" rating was justified from the title.
Good luck!

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Babet et Lulu
Babet et Lulu

Overall rating : 3.7 / 5

Date of your route : May 09, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

It's a shame that there are no signposts on site: there is one sign pointing in the "wrong direction" at the start, near the picnic tables...
So we walked without any signposts, following the description to point 5 (Toissieux hamlet exit)
After the hamlet, there were no problems, everything was well signposted. Luckily, we were somewhat familiar with the area.
Other than that, it's a beautiful route, but walking shoes are essential.

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yvanva
yvanva

Overall rating : 5 / 5

Date of your route : May 09, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful, short walk (circular completed in 1 hour 40 minutes) but varied. The difficult rating seems a little exaggerated to me, as the trail is very well marked and it is difficult to get lost on this route.

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dougere
dougere

Overall rating : 5 / 5

Date of your route : Mar 27, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A lovely walk at the start of this sunny spring. No difficulty with a GPS.
Worth doing again

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svart 07
svart 07

Overall rating : 5 / 5

Date of your route : Feb 21, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

We had often walked in this area but had never found this path. Thank you for pointing it out; it is now clearly marked. Crossing the LA MASSE stream, which was slightly swollen, with our two dogs was quite an adventure. A very beautiful hike. Thank you...

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Fred Faure
Fred Faure

Overall rating : 4 / 5

Date of your route : Sep 09, 2018
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good

A superb walk, although quite difficult at the start: when you're climbing steeply (sometimes almost on all fours!) through the broom, you feel a bit lost, but at the same time there's no real alternative. The path quickly turns into a trail that runs along the hillside. It seemed longer than 6.5 km to me, and it actually takes a good 2½ hours to reach the end with a young child (6 years old, athletic but an average walker).
Thank you for this excursion!
Fred

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vmissemer
vmissemer

Overall rating : 5 / 5

Date of your route : Jul 26, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A very beautiful walk, short but very varied
Worth doing again and again!
Thank you!

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gadmi
gadmi

Overall rating : 5 / 5

Date of your route : May 25, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

very nice walk

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piannonay
piannonay

Overall rating : 4.7 / 5

Date of your route : Dec 29, 2015
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

hello.

a very pleasant little walk.

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cathyferrer
cathyferrer

Overall rating : 5 / 5

Date of your route : Dec 10, 2015
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A very beautiful hike. We set off from Toissieu towards the Mer de Glace, then after point 3, we climbed up to the ridge towards the hamlet of Hermus and returned to Toissieu by road.
The trail is very well marked on the ground, probably because motorised vehicles have been used.
You can take a break at many places depending on the season, the weather and the views you like.
Thank you, Charlie07

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tu uyen
tu uyen

Overall rating : 5 / 5

Date of your route : Jul 19, 2015
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

What wonderful surprises! Very varied landscapes, wild nature, a path with very few people. Picnic on the "rocky plateau" described in the guidebook, with breathtaking views of the Rhône valley and the advancing grey clouds. Arrival just in time in the village of Toissieux as a storm broke (half an hour...) to take shelter under the awning opposite the church, then back to walking amid the heady scents exhaled by the rain and heat. Many thanks to Charlie07.

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promenades
promenades

Overall rating : 5 / 5

Date of your route : Apr 09, 2015
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

a very beautiful hike. There is a stunning view when you reach the top and see the village of Toissieux below. We measured 7 km with our pedometer. Don't forget to bring a hat in hot weather as there isn't much shade, and wear good walking shoes. A very interesting route, and the Mer de Glace site at the start is magnificent. Worth doing again.

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