
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.
“An amazing and very memorable experience”Bhagyashree & Akhil · Tour du Mont Blanc
Read the reviewsThis 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.
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 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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