
Cauterets to Barèges
Into the Bastan
Out of the spa town, over the Col de Riou, and back up the Bastan to where the high country begins.
Out of the spa town, over the Col de Riou, and back up the Bastan to where the high country begins.

Self-guided · GR10 · France
You'll walk 113 kilometres through the French Pyrenees, taken from the spa town of Cauterets over the high lake country of the Néouvielle to the thermal valley of Luchon, with hard climbs, glacial lakes, and one final cirque to cross before the long drop into the Vallée du Lys.
This section takes in some of the best high-altitude scenery on the whole GR10 — a run of glacial lakes and granite cols that most walkers rate among the trip's highlights, whichever section they've walked.
It's a genuinely tough stretch, best suited to walkers who've already got a mountain trip or two behind them. One night is spent in a mountain refuge; the rest are proper village beds, ending in Luchon, a thermal spa town with the comforts to match after a week in high country.
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 | Cauterets toDay 3 stopover | 30.8 km | 1941 m | 15½ hrs |
| 2 | Day 3 stopover toDay 5 stopover | 20.6 km | 1295 m | 10½ hrs |
| 3 | Day 5 stopover toDay 7 stopover | 20.5 km | 1294 m | 10½ hrs |
| 4 | Day 7 stopover toDay 9 stopover | 20.6 km | 1295 m | 10½ hrs |
| 5 | Day 9 stopover toLuchon | 20.5 km | 1295 m | 10½ hrs |
Your trail divides naturally into three parts — not by day, but by altitude. You climb out of Cauterets through the lower valleys, cross the high lake country of the Néouvielle, then work back through villages to a final ridge above Luchon.
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 4: Cauterets to Luchon 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 4: Cauterets to Luchon.
Where you'll stay
Small hotels and family-run guesthouses cover most nights, with one dormitory-style refuge stay at Espingo where there's no alternative. Luchon at the end is a proper thermal town, so the last bed comes with more comfort than the ones before it. We match accommodation to your dates and pace when we build the trip.
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 4: Cauterets to Luchon 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 113 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 4: Cauterets to Luchon 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.
Groups of six or more
Book the GR10 Section 4: Cauterets to Luchon as a private group departure and we'll give you your own trip page. One organiser agrees the trip with us; every walker then pays their own deposit by card and fills in their own details. No collecting bank transfers, no spreadsheet of who's paid.

You'll want to be comfortable walking around 16 km a day with a daypack on mountain ground, with sustained climbs of 1,000m or more on individual days. This is a high-mountain section. If that sounds too much, the Explorer pace at nine days breaks the same route into shorter stages — usually around 12 km a day, with more time at altitude.
June through September is the trail's reliable window. Snow can linger on the high passes into early summer — by mid-June the col crossings are usually clear, though conditions vary year to year. July and August are warm and busy on the refuges; September often gives the cleanest views and the quieter nights. Early-summer walkers should expect patches of snow on north-facing slopes.
Yes for most stages — your bag is moved between accommodations every walking day, up to 20 kg per bag. The Espingo Refuge night is the exception: the refuge is a high-mountain hut without road access, so you carry an overnight pack for that one stage. We send a clear packing list for that night.
Small hotels, family-run guesthouses, and traditional gîtes in the valley villages. One night is in the mountain refuge at Espingo — basic, communal, with a shared dining room and bunk-style sleeping; not luxury, but a memorable night. Everywhere else has en-suite or private rooms where the village allows, with breakfast included.
Yes. The GR10 is one of Europe's best-marked long-distance paths, with red-and-white waymarks at every junction. In summer you'll see other walkers most days, especially around the refuge nights. Solo travellers pay a small single-occupancy supplement at the valley accommodations; the refuge night is shared regardless.
Our Classic package starts at £889 per person for the seven-day Hiker pace, based on two people sharing. Add roughly €20–30 per day for lunches and drinks on the trail, plus your refuge night dinner (around €25–30). Transfers from Toulouse or Lourdes to Cauterets and back from Luchon are extra; we can advise on the best train and bus combinations.
Yes. Every GR10 Section 4: Cauterets to Luchon 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 113 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 4: Cauterets to Luchon 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 113 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 113 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 4 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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“An amazing and very memorable experience”Bhagyashree & Akhil · Tour du Mont Blanc
Read the reviewsReviews from walkers
5.0 from 6 verified reviews
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.
“A spectacular and varied hike - well supported by strong local knowledge!”
An amazing 5 days on the trail through widely varying scenery, spectacular coastal and mountain views, with beautiful Mallorcan towns and delicious Mallorcan food to break up the journey. Despite travelling during peak season and during a long weekend, the trail never felt "crowded" and there were plenty of stretches where it was possible to enjoy the rugged isolation of this world heritage area.
The Big Trail Adventures team did a great job putting together an itinerary at short notice to suit my availability and ambitions for the hike. The team was responsive to specific queries and the bookings and luggage transfers all worked smoothly to support the hike.



“Beautiful route, excellent organization by Big Trail Adventures and partners”
Everything about this trip was exceptional. The route is incredibly beautiful, the lodging every night was top notch, and the hiking was very doable. I scheduled an 8 day itinerary as I was recovering from a leg injury and wasn't sure how recovered I'd be by the start date. Fortunately, I was fully recovered and nothing on the hike resulted in re-injury; if felt like a great recovery period. Aside from the first day when thunderstorms rolled through, the weather was good -- partly cloudy to sunny every day with very comfortable temperatures (I was there Oct 7-14). I saw very few people on most sections of the route. As a solo, female traveler, I felt very comfortable and met several other solo women. The villages are beautiful and everyone if very friendly. One thing I found it difficult to get information on prior to the trip is the availability of water on the route. So, if you are planning this trip note that there is very little water available outside your starting and ending points, and any village you might go through during the day. Not knowing about water availability in advance, I took plenty of water each day, but it is important to be aware of this, especially if you are hiking in the warmer months. All in all a great trip!
I requested a self-guided itinerary within a month of desired departure and Big Trail Adventures made it happen for me! Their planning, organization, and support during the hike was excellent! Navigation was flawless with the gps files they sent, the lodging was great, and all the restaurant recommendations they made that I tried were very good. I cannot recommend them highly enough.
After 3 days of solitude on the trail, enjoying the immense beauty of the island, descending into Valldemossa on a Friday afternoon and turning the corner to suddenly be in the midst of a bustling tourist town was quite a shock! :-) The contrast was striking. When I departed at 8am the following morning; however, there was not a sole in sight!


