Self-guided · GR10 · France
You'll walk 97 kilometres through the Ariège Pyrenees, from a thermal-spa village to a mountain railway station — over the Port de Bassiès and into a chain of high lakes, then along the airy Crête des Isards before the long descent. A route that earns every metre of its 5,550 metres of ascent.
“An amazing and very memorable experience”Bhagyashree & Akhil · Tour du Mont Blanc
Read the reviewsThis section builds to the GR10's high, committing crest walking — days spent above 2,000 metres with long views and not much company. It suits walkers who've already found their mountain legs and want the trail at its most exposed.
It ends, appropriately, at a railway station rather than a village square — Mérens-les-Vals sits on the line up to Andorra and back to Toulouse, so the walk out is as easy as the walk in was hard.
Here's how this section looks for most walkers. Everything here is a starting point — the planner below rebuilds it around your own pace and dates.
Walked at our hiker pace, this is where most of our customers finish each day. Take more days and we'll split the longer stages; take fewer and we'll lengthen them by using the stops in between. We know every option along the route, so your days end up the right length whatever pace you choose.
| Day | Stage | Distance | Ascent | Walking |
|---|---|---|---|---|
| 1 | Aulus-les-Bains toDay 2 stopover | 17.6 km | 1009 m | 8½ hrs |
| 2 | Day 2 stopover toDay 4 stopover | 17.7 km | 1009 m | 8½ hrs |
| 3 | Day 4 stopover toDay 7 stopover | 26.4 km | 1513 m | 12½ hrs |
| 4 | Day 7 stopover toDay 9 stopover | 17.7 km | 1009 m | 8½ hrs |
| 5 | Day 9 stopover toMérens-les-Vals | 17.6 km | 1010 m | 8½ hrs |
Your trail divides naturally into three parts — not by day, but by the character of the country. You climb first into the lake basin of the Bassiès, drop back through forest cols and a pastoral plateau, then commit to the long high crêtes that carry you to Mérens.
Aulus les Bains to Goulier
A first hard climb past flower pasture and old silver workings, then a high pass and the lakes open below.
A first hard climb past flower pasture and old silver workings, then a high pass and the lakes open below.
Goulier to Les Cabannes
Forest cols and stone hamlets, broken by a long climb to a plateau with a panorama in every direction.
Forest cols and stone hamlets, broken by a long climb to a plateau with a panorama in every direction.
Plateau de Beille to Mérens
The trail's highest and most committed section — three cols above 2,000 metres, an airy ridge, and the long drop to Mérens.
The trail's highest and most committed section — three cols above 2,000 metres, an airy ridge, and the long drop to Mérens.
Build your trip
Pick your pace, party size and dates. The itinerary, distances, nightly stops and the price all update live — no commitment until you're happy.
Your day-by-day itinerary updates live in the Your itinerary section below.
This is the itinerary you're building. Change the pace, party size or start date in the planner above and every stage, distance and date updates here.
You are booking the itinerary above: your walking days, your overnight stays and the support that carries you between them.
Organising this trail for friends? Build a group trip with individual payments
We'll start planning your trip right away. Not happy with anything? We'll adjust it or refund you — no questions asked.
The Association of Bonded Travel Organisers Trust Limited (ABTOT) provides financial protection under The Package Travel and Linked Travel Arrangements Regulations 2018 for Big Trail Adventures (member 5690). Protection is provided for non-flight packages. Full details in our booking conditions.
Your GR10 Section 6: Aulus les Bains to Mérens is planned from first step to final check-in. The stays, luggage, navigation, local knowledge and a real team behind you are all part of the same trip.
Self-guided, but properly supported. You turn up, you walk, you eat well, you sleep well. We handle the logistics.
This is not a generic guidebook. We build a private Trail Companion for your dates, your direction, your overnight stops and every day of your GR10 Section 6: Aulus les Bains to Mérens.
01
Trail Book
Your exact GR10 Section 6: Aulus les Bains to Mérens itinerary — from the place you sleep to the next front door, with the turns people miss and the stops worth making.
02
Trail Book
Follow your stage offline, see what remains and get a live estimate based on the pace you are actually walking. Your GPX is already cut into each day, ready for Garmin, Coros, Suunto, Apple Watch, Komoot or OS Maps.
03
Trail Book
Family and friends see where you are and when you last updated — no app, no account.
Where you'll stay
Family-run guesthouses and small hotels cover the valley nights, with two refuge stays — Bassiès and Rulhe — where dormitory beds and a communal dinner are the only option. We book the village nights for comfort and the refuges for the fact they're there; details depend on your dates.
Every trip is planned around your dates and party, so we can't promise you a specific inn — but we can promise the kind of welcome that makes a walking holiday feel like a proper holiday.
Self-guided, fully supported
Self-guided means the walking is yours and the logistics are ours. You set off on the GR10 Section 6: Aulus les Bains to Mérens when you want, walk at whatever pace suits you, and stop where you like — there is no group to keep up with and no leader setting the schedule. Everything that makes an independent long-distance walk hard work to organise is handled before you arrive.
There are no fixed departure dates. Choose your own start day, tell us how many nights you want, and the planner rebuilds the 97 km route around it.
We remove the awkward parts at both ends: quiet reassurance for a solo walker, and no unpaid-invoice chasing for the friend who gets a group moving.
Going solo
We lend solo walkers a satellite GPS tracker. It updates automatically, even away from phone signal, so you can walk freely while the people at home follow your progress.
Bringing friends
Plan a private GR10 Section 6: Aulus les Bains to Mérens with us and get one shared trip page. Every walker pays their own deposit by card and adds their own details—no bank transfers or payment spreadsheet.
Reviews from walkers
Every review here comes from someone who actually travelled with us — we only ask once the trip's over, and we don't edit what they say.
Different routes, same team doing the planning, the bookings and the hand-holding — so these say a lot about what to expect here too.
“An amazing and very memorable experience”
We had a really wonderful experience and are very happy that we went ahead with the trek. It was challenging at times, but overall it was an amazing and very memorable experience. The scenery, the trails and the whole journey were absolutely beautiful. Bhagyashree did have some issues with her knee during the trek, which made a few sections difficult. We didn't let that stop us — we completed most of the trek and, wherever necessary, adapted our plans and took a bus or train for certain stretches rather than putting too much strain on her knee. Managing the trek despite the knee issue made the achievement feel even more special.
Thank you once again for all your help and guidance in planning the trek. Will definitely recommend Big Trail Adventures to all.
“Solo or in a group, I would do this again tomorrow!”
One of the best experiences I have had. I did this solo and felt supported all the way with the BigTrailAdventures team, especially in inclement weather. The vistas were incredible and overnight accommodation was faultlessly organised. Pushing myself during the day ( I ran rather than walked the trail), and then being fed and watered in a hotel in the evening was a treat.
The planning was exceptional and all details were covered.
There is a special time every day when you are overcome with the beauty of the nature that you are seeing, the sweeping vistas and the gratitude for being able to experience this. It rejuvenates your soul.
“Awesome support from start to finish”
The hike, which challenged me in different ways each day, was great. There was so much to see in every direction. The Highlands are simply stunning, clouds and all. The stays were good for the most part, some better than others (one night my room was above the kitchen so it was quite noisy until late into the night and the haunted Inn was a bit much for me :)). The Rowardennan Hotel and Craig Nevis guesthouse were my favorites. All of them offered great breakfasts and most had dinner options with good selections as well.
The planning was amazing. No glitches, except for one minor one at the start where the luggage van changed their drop off location without my knowledge. Thankfully Craig was there in the morning and quickly figured out where they were and even dropped off my luggage for me. Everything else was planned and executed perfectly; my itinerary for each day included great detail of what to expect. The app was awesome and my friends and family loved tracking me every day with the GPS. I had read that the West Highland Way is very popular in spring (when I initially had planned to go) and late summer. It took a lot of back and forth communication about potential dates but Craig very patiently worked it all out. All communication was prompt and thorough. I very much appreciate all the support I received prior and during my adventure!! Thank you Craig!
There are so many moments I will carry with me for a long time, like my first glimpse of the Highlands, all the water everywhere, the coos, day 2 along Loch Lomond when I wished I was a mountain goat and was grateful that it did not rain, arriving at Kingshouse after 19 miles, midges (haha), and so much more.
You'll want to be comfortable walking 15-20 km a day with sustained ascent — most stages gain 800-1,200 metres on mountain paths, some of them rocky, and Day 2 climbs 1,190 metres in 11 km. The trail crosses cols above 2,300 metres and one day involves a short cable-assisted descent. This is high-mountain walking, not valley walking, and the daily ascent figures are a better measure of difficulty than distance.
June to September is the window. The high cols hold snow into late spring — the Crête de la Lhasse sits at 2,439 metres — so May can carry winter conditions on the passes. October is possible in a settled year, but weather turns quickly and refuges start closing. Mid-summer offers the most reliable conditions; September is quieter, with the same long days starting to shorten.
Luggage transfer runs between road-accessible accommodation, up to 20 kg per bag. Two of your overnight stops are mountain refuges — the Refuge de Bassiès and the Refuge de Rulhe — which can only be reached on foot, so you'll carry what you need for those nights yourself. We sort the logistics either side, and your main bag waits for you at the next valley stop.
Family-run guesthouses, traditional inns, and small hotels in the valley villages — Aulus, Goulier, Siguer, Les Cabannes, Mérens. The two refuge nights at Bassiès and Rulhe are dormitory-style mountain huts with dinner and breakfast included; that's the only option at those altitudes. Where there's a choice, we book en-suite rooms with breakfast.
Yes. The trail is well waymarked with the GR10's red-and-white stripes, the refuges are friendly places where you'll meet other walkers, and the valley villages have other accommodation if you want company in the dining room. The high mountain sections are the ones to think about: you're far from a road on parts of Day 6 and Day 7, and weather can change quickly. Solo walkers are well used to this terrain, but it's high country and you need to be confident in your own judgement.
The Classic package starts at £749 per person for the six-day Hiker pace, based on two people sharing. That covers all accommodation including the two refuge nights, luggage transfer where possible, and your route booking. On the trail you'll want to budget around €25 a day for lunches and drinks, around €20 for the Plateau de Beille shuttle on Day 6, and around €18 for the train back to Toulouse from Mérens at the end.
Yes. Every GR10 Section 6: Aulus les Bains to Mérens trip we run is self-guided: you walk the route on your own, at your own pace, with no group and no guide. We do the planning and the logistics — an itinerary of 3 – 7 days built around the pace you choose, accommodation booked in your name along the 97 km route, your main bag moved between stays each day, GPX files and route notes for every stage, and a real person on the end of the phone while you're out there. You choose your own start date; there are no fixed departures.
On a guided trip you walk with a leader and a group to a fixed schedule. Self-guided means the day is yours: start when you like, stop for lunch where you like, walk fast or slowly, take a rest day. The route is waymarked and you navigate with the GPX and notes we provide. Everything that makes a trip complicated — accommodation, luggage transfer, the shape of each day — is arranged for you before you arrive.
Yes — the GR10 Section 6: Aulus les Bains to Mérens is a signed long-distance route and thousands of people walk it independently every year. What most walkers want help with isn't navigation, it's the 97 km of accommodation, the bag transfers, and getting the daily distances right. That's exactly what we take off your hands, while you still walk it under your own steam.
We do, both. We book walker-friendly B&Bs, inns and small hotels in your name at each overnight stop, with breakfast, and arrange door-to-door luggage transfer between them so you walk with a daypack. You'll get a full itinerary with every address, check-in detail and transfer time before you travel.
Most people take 3 – 7 days for the 97 km. Our planner lets you set your own pace and number of nights, so you can stretch the trip out with shorter days or compress it if you're used to back-to-back big days — the itinerary, accommodation stops and price all update as you change it.
Craig has walked the GR10 Section 6 in every season. Tell him your dates, party size and ability and he'll come back with a route that fits — or point you at a different section if this one isn't quite right.
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