
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.

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.
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.

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

Barèges to Vielle-Aure
The high lake country, three big cols, and the longest descent of the section.

Vielle-Aure to Luchon
Through villages to a refuge above Lac d'Oô, then a final cirque and the long drop into 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.
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, but properly supported. You turn up, you walk, you eat well, you sleep well. We handle the logistics.
Walking the GR10 Section 4: Cauterets to Luchon alone doesn't mean being out of touch. We lend you a small GPS tracker for the trail, and a private map link lets the people who care about you follow along from home.
Carry it in your pack and it updates your position as you walk — no phone signal required.
See your own progress on a secure map, with your overnight stops visible at a glance.
Send the private link to family or friends so they know you've arrived safely each day.
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.
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.

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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