Last updated September 23, 2026
GR10 Pyrenees: Complete Traverse Guide
The GR10 crosses the French side of the Pyrenees from the Atlantic Ocean at Hendaye to the Mediterranean at Banyuls-sur-Mer. The practical modern route is roughly 920–922 km / 572 miles, with about 55,000 metres of cumulative climbing and a typical thru-hike of 45–60 days through Basque hills, high Pyrenean passes, national-park valleys, Ariège wilderness and the dry eastern mountains.
How Long Is the GR10?
For practical thru-hike planning, use approximately 920–922 km / 572 miles from Hendaye to Banyuls-sur-Mer. Current Hendaye tourism gives 922 km, while Ariège Pyrénées gives 920 km and approximately 55,000 metres of ascent and descent. Published numbers vary because route alignments, variants, access paths and measurement methods differ.
FFRandonnée’s current overview describes the route as approximately 1,100 km, while more detailed route-level sources currently use about 920–922 km. Rather than treating either figure as survey-perfect, use ≈920 km for trip pacing and use the current FFRandonnée/IGN route and GPX for navigation.
Fire damage has created active closures and detours in Ariège. Current tourism guidance reports a closure around the Bassiès–Marc sector and another prohibited section between Étang d’Ayes and Cap des Lauzes because damaged slopes remain vulnerable to rockfall. Follow the current signed detours and recheck official Ariège GR10 information immediately before reaching these sectors.
GR10 Pyrenees Route Map.
The GR10 stays primarily on the French side of the Pyrenees. It repeatedly drops into inhabited valleys before climbing back across the range—one reason its accumulated elevation is enormous despite a high point below 2,800 metres.
The GR10 Starts Almost With Your Feet in the Sea.
The official Hendaye tourism description places the beginning opposite the Grande Plage. The first day immediately proves that coastal does not mean flat: the published opening stage is roughly 23 km with about 1,200 metres of climbing toward the Basque mountains.
Photo: A1AA1A · Wikimedia Commons · CC BY-SAGR10 Route: Atlantic to Mediterranean.
Thinking in four large sectors is more useful than memorizing fifty individual nights before accommodation and fitness choices are known.
| Sector | Approximate route | Character | Key landscapes | Planning issue |
|---|---|---|---|---|
| Western Pyrenees | Hendaye → Arrens-Marsous | Green, pastoral and progressively higher | Pays Basque, La Rhune country, Saint-Jean-Pied-de-Port, Aspe and Ossau valleys | Easy services compared with later sectors, but repeated climbing begins immediately. |
| Central Pyrenees | Arrens-Marsous → Melles | Highest and most dramatic mountain country | Lac de Gaube, Vignemale, Hourquette d’Ossoue, Gavarnie, Néouvielle, Luchon | Snow, thunderstorms and high-refuge reservations matter most here. |
| Ariège | Melles → Mérens-les-Vals | Wild, forested, remote and physically relentless | Couserans, Bassiès, Aulus, Fourcat, Plateau de Beille | Longer food carries, fewer easy exits and current 2026 fire detours. |
| Eastern Pyrenees | Mérens-les-Vals → Banyuls-sur-Mer | Drier and increasingly Mediterranean | Bouillouses, Carlit region, Canigou massif, vineyards and Mediterranean coast | Heat and water begin replacing lingering snow as the dominant environmental concerns. |
How Many Days Does the GR10 Take?
Current regional guidance gives 45–60 days, with roughly 55 days as a representative complete traverse. The GR10 association publishes multiple schedules ranging from five-day section trips to 59-day full-route plans.
≈45 Days
Requires strong back-to-back endurance, relatively long stages and limited margin for weather or rest.
≈50–55 Days
Fits current GR10 planning guidance and allows a workable mix of gîtes, refuges, village resupply and occasional longer days.
≈56–60 Days
More room for shorter mountain stages, bivouac flexibility and recovery after the hardest central and Ariège sections.
7–15 Days
The four major regions work well as independent trips if a complete coast-to-coast traverse is unrealistic.
Possible in Season
The GR10 association documents complete lodging-based itineraries when refuges and gîtes are fully operating.
More Flexible
A lightweight shelter increases independence but introduces local bivouac regulations and additional pack weight.
Do not build 922 km as one fixed reservation chain.
Unlike a short Alpine hut trek, a GR10 thru-hike lasts long enough that weather, fatigue and trail changes will alter the schedule. Reserve true bottleneck refuges, understand cancellation rules and preserve flexibility where villages and gîtes give multiple options.
Hendaye to Banyuls or Banyuls to Hendaye?
The red-and-white GR markings work in both directions, but west-to-east remains the traditional orientation.
Hendaye → Banyuls
Matches the classic topoguides, begins with greener western terrain and finishes with the Mediterranean appearing ahead.
Most Go East
The Amis GRdistes estimate roughly 80% of thru-hikers begin in the west.
Banyuls → Hendaye
Fully valid and often attractive when weather, transport or seasonal timing makes an eastern start more practical.
The GR10 association notes that hikers heading east often climb morning slopes while still shaded and tend to have prevailing westerly weather more behind them than in their face. It is not a guarantee—but it is one reason direction can affect daily comfort.
The Central Pyrenees Are the Mountain Heart of the GR10.
The route climbs from Cauterets through the Lac de Gaube corridor beneath Vignemale before reaching its highest crossing at Hourquette d’Ossoue. This is where a long-distance trail briefly feels much closer to a high-mountain route.
Photo: Daniel Villafruela · Wikimedia Commons · CC BY-SA 4.0How Difficult Is the GR10?
The GR10 is a marked hiking route rather than a technical climbing route, but its length, vertical gain and mountain weather make the full crossing a serious endurance objective.
Extreme
More than 900 km makes small foot, gear and recovery problems compound over seven or eight weeks.
≈55,000 m
The route repeatedly drops into valleys and climbs back over passes rather than maintaining one high contour.
Mostly Hiking
Normal summer travel is on marked mountain paths, but snow can turn high passes into a different type of problem.
Well Marked
Red-and-white GR markings are the foundation, but fog, detours and snow still justify offline mapping.
Highly Variable
The western valleys can feel well supported; Ariège contains some of the route’s longest and wildest stretches.
Major Risk
Atlantic rain, summer thunderstorms, lingering snow and eastern heat all appear on the same thru-hike.
Hourquette d’Ossoue: Highest Point on the GR10.
The trail’s highest crossing lies beside the Vignemale massif between the Oulettes de Gaube/Bayssellance area and Gavarnie country.
The GR10 association specifically identifies Hourquette d’Ossoue at 2,734 metres as the route’s highest point and warns that snow can linger late.
- Early-season névé can cover the western slope.
- The underlying scree is difficult when snow-covered.
- Hikers without snow experience may need an alternative route.
- Crampons and an ice axe can be strongly advised when early-season snow remains.
- Conditions—not the date—decide whether normal summer hiking equipment is enough.
Vignemale rises above Lac de Gaube on the approach toward the GR10’s highest sector.Best Time to Hike the GR10.
The GR10 association gives roughly mid-June to early October as the broad ideal period, while complete accommodation coverage is strongest from June through September.
| Period | High-pass conditions | Accommodation | Main advantage | Main concern |
|---|---|---|---|---|
| May | Snow likely on major passes | Many high refuges closed | Western low country can be attractive | Too early for a normal full traverse |
| Mid–late June | Rapidly improving but snow remains possible | Opening progressively | Long daylight and cooler temperatures | Hourquette d’Ossoue and other 2,000 m+ crossings can still require snow skills |
| July | Core summer | Strong availability | Long days and broad refuge network | Thunderstorms, heat in lower valleys and busy refuges |
| August | Generally snow-free | Fully operating | Most reliable complete-route support | Heat, thunderstorms and peak-season demand |
| September | Usually strong early in month | Still broad | Cooler weather and lower traffic | Shortening daylight and increasing chance of early snow late month |
| Early October | Autumn conditions | Network beginning to break | Quiet trail | Closures, storms and short days complicate a complete thru-hike |
Starting later does not simply solve the snow problem.
A late start reduces lingering snow but pushes the eastern half toward shorter days, refuge closures and autumn storms. A complete thru-hike has to balance conditions at both ends of a seven- or eight-week journey.
The Middle of the GR10 Is a Chain of Lakes, Passes and Deep Valleys.
Néouvielle follows the Vignemale and Gavarnie world with another completely different high-mountain landscape. The constant descent-and-reclimb profile is beautiful—and explains the route’s enormous cumulative elevation gain.
Photo: Tournasol7 · Wikimedia Commons · CC BY 4.0GR10 Snow, Thunderstorms and Heat.
A coast-to-coast Pyrenees trek requires more than one weather strategy.
Lingering Snow
High cols above 2,000 metres can retain snow into summer, especially around the central Pyrenees.
Thunderstorms
Start major passes early enough to reduce exposure to convective storms developing later in the day.
Wet Atlantic Influence
Green landscapes exist because rain and cloud are normal features rather than exceptional events.
Isolation
Poor weather matters more when exits, resupply and accommodation are farther apart.
Heat + Water
The route becomes progressively drier near Canigou and the Mediterranean.
Forecast Locally
A single forecast for “the Pyrenees” is meaningless on a route hundreds of kilometres long.
Where Do You Sleep on the GR10?
The GR10 association currently tracks about 110 staffed accommodation structures along the traverse, but the density varies dramatically by sector.
The Backbone
Simple walker-oriented lodging in towns and villages is one of the main reasons a tentless traverse is possible.
High-Sector Nights
Refuges bridge the long mountain sections where a valley hotel would force major extra descent.
Recovery
Larger villages make laundry, resupply, private rooms and rest days much easier.
Reserve Key Nights
Popular high huts can fill in July and August even when nearby valley lodging remains available.
Oulettes Reopened
Refuge des Oulettes de Gaube reopened July 25, 2026 after major works and currently lists 87 places.
2,651 m
The key Vignemale-area refuge was staffed from May 30 to October 10, 2026 and requires careful high-season planning.
Can You Camp on the GR10?
Camping and bivouac regulations change along the route because the GR10 crosses communes, protected areas and national-park land.
No Camping
Ordinary camping is prohibited inside the core of Pyrénées National Park.
19:00 → 09:00
A small overnight tent is permitted under the park’s bivouac rules when location requirements are met.
More Than 1 Hour Away
Within the park framework, bivouac sites must generally be more than an hour’s walk from motorized access.
Designated Sites
Some refuges have specifically marked bivouac areas where local rules should be followed.
Do Not Assume It Is Allowed
Fire is prohibited in the national-park core and can be heavily restricted elsewhere during dry periods.
Core Zone Prohibition
Dogs are not allowed in the core of Pyrénées National Park, even when kept on leash.
Swimming and other activities involving immersion in lakes and small mountain lakes are now prohibited in the core of Pyrénées National Park. Treat high lakes as protected ecosystems rather than swimming stops.
GR10 Resupply and Food.
The GR10 is not a food-carrying wilderness trail for its entire length, but neither should it be planned as if every day ends beside a supermarket.
| Source | How useful it is | Planning note |
|---|---|---|
| Village grocery / épicerie | Primary resupply | Smaller stores may close midday, one day each week or outside peak season. |
| Gîte d’étape | Very useful | Many provide meals and some sell basic hiking food or packed lunches. |
| Mountain refuge | Useful but limited | Half-board reduces carried food, but stock is not equivalent to a grocery store. |
| Large valley town | Full reset | Use Cauterets, Luchon and similar hubs for proper resupply, pharmacy and gear replacement. |
| Ariège | More self-sufficiency | Current regional guidance identifies Ariège as the wildest and most isolated quarter of the GR10. |
| Eastern Pyrenees | Villages available | Carry enough water between verified sources as summer heat increases toward the Mediterranean. |
Shop hours are part of route planning.
A village marked on the map is not automatically a same-day resupply. Small Pyrenean businesses often have limited hours, and a Sunday or afternoon closure can turn “buy dinner there” into a very different evening.
Near the Mediterranean, the GR10 Changes Again.
The FFRandonnée route passes through the Canigou massif without requiring the 2,784-metre summit itself. After weeks of Atlantic and high-mountain terrain, the vegetation, temperatures and views begin to announce the Mediterranean long before Banyuls appears.
Photo: Yann Gwilhoù · Wikimedia Commons · CC BY-SA 4.02026 GR10 Closures and Detours.
A thru-hike is long enough that a route can change after you leave Hendaye. Check notices continuously rather than only before flying to France.
Current Ariège tourism information reports the GR10 closed from the Massada parking area, with access toward Refuge de Bassiès redirected via Saleix or Coumebière. The section between the lower Bassiès lakes and Marc is affected by the fire closure, and another fire-damaged sector between Étang d’Ayes and Cap des Lauzes is also prohibited because unstable ground creates rockfall danger.
Download the Current Route
Do not rely on a GPX file saved years earlier.
Ask Locally
Refuge wardens and gîte hosts often know about diversions before a thru-hiker reaches them.
Follow the Detour
Fire-damaged slopes can remain dangerous long after flames disappear because vegetation no longer stabilizes the ground.
GR10 vs GR11 vs HRP.
All three cross the Pyrenean chain from Atlantic to Mediterranean, but they are different route systems rather than interchangeable names.
| Factor | GR10 | GR11 | HRP |
|---|---|---|---|
| General side | French / northern Pyrenees | Spanish / southern Pyrenees | Near the high crest, crossing between countries |
| Route type | Official Grande Randonnée | Official long-distance GR route | High-route concept rather than one continuously waymarked GR |
| Marking | Red + white | Red + white | Not continuously marked as one route |
| Navigation | Generally straightforward in good conditions | Generally straightforward in good conditions | Greater route-finding responsibility |
| Route character | Repeated valleys and passes with extensive village contact | Southern Pyrenean traverse with generally drier climatic influence | Stays higher and closer to the main frontier ridge when practical |
| Support | Large gîte/refuge network | Refugios, villages and mountain services | More dependent on independent planning and route choice |
| Best understood as | French coast-to-coast marked traverse | Spanish coast-to-coast marked traverse | Higher, less standardized Pyrenean high route |
The GR10’s difficulty is physical more than technical.
The HRP stays closer to the crest and demands more independent navigation. The GR10 instead earns its reputation through enormous accumulated ascent and descent while repeatedly dropping into French valleys.
Getting to Hendaye and Home From Banyuls.
A car is unnecessary for a complete GR10 traverse, and leaving one 900 km away from the finish makes little sense anyway.
Hendaye
The town has a main railway station with TGV service and regional connections, plus bus access and nearby Biarritz airport.
Grande Plage
The traditional GR10 departure is on the coast rather than at the railway station itself.
Banyuls-sur-Mer
The route reaches the coast in a real town with accommodation, food and onward transport.
Banyuls Station
Regional rail links connect Banyuls with the Perpignan–Narbonne network and onward French services.
Multiple Exit Valleys
Road and rail connections around major valleys make the GR10 easier to break into separate multi-week journeys.
Spend the Night
Do not make the final mountain stage responsible for delivering you to a fixed same-day flight.
After 900+ Kilometres, the Mountains Finally Reach the Sea.
The finish reverses the beginning: descend from dry Pyrenean ridges into vineyards and Mediterranean vegetation until salt water appears again—this time on the opposite side of the mountain chain.
Photo: Alacoolwiki · Wikimedia Commons · CC BY-SA 4.0Where the GR10 Fits.
The GR10 completes the European cluster with a true coast-to-coast mountain traverse rather than a loop, compact hut trek or short Highland crossing.
Prepare for More Than Mileage.
A well-marked trail still demands weather judgment, terrain understanding and enough durability to climb thousands of metres week after week.
Check the GR10 Again Before You Start.
For a trail this long, current route closures, snow and accommodation status matter more than a static itinerary copied months earlier.
GR10 Pyrenees FAQ.
The questions that matter before committing to a coast-to-coast Pyrenean traverse.
How long is the GR10?
Current route-level sources place the GR10 at approximately 920–922 km / 572 miles from Hendaye to Banyuls-sur-Mer. FFRandonnée’s broader overview currently uses an approximate 1,100 km figure, so published mileage varies. Use current mapping for exact trip planning.
How many days does the GR10 take?
Current regional guidance gives approximately 45–60 days, with about 55 days representing a balanced full traverse for many prepared hikers.
How much elevation gain is on the GR10?
Current route-level planning sources give approximately 55,000 metres / 180,000 feet of cumulative ascent and a similar amount of descent.
Where does the GR10 start?
The traditional west-to-east GR10 starts at Hendaye on France’s Atlantic coast, near the Grande Plage.
Where does the GR10 finish?
The eastbound traverse finishes at Banyuls-sur-Mer on the Mediterranean coast in Pyrénées-Orientales.
What is the highest point on the GR10?
Hourquette d’Ossoue beside the Vignemale massif is the highest GR10 crossing at approximately 2,734 metres / 8,970 feet.
Is the GR10 difficult?
The GR10 is a demanding long-distance mountain hike rather than a normal technical climbing route. Its main challenges are more than 900 km of walking, approximately 55,000 metres of ascent, repeated long descents, weather and cumulative fatigue.
Is the GR10 well marked?
Yes. The official GR10 uses the standard French red-and-white Grande Randonnée markings. Hikers should still carry current mapping because snow, fog, detours and route changes can hide or alter the normal line.
Do you need a permit for the GR10?
There is no single coast-to-coast GR10 thru-hike permit. Hikers must instead follow the regulations of the protected areas, refuges, campsites and local jurisdictions crossed by their specific itinerary.
Can you wild camp on the GR10?
There is no single wild-camping rule for the complete GR10. In the core of Pyrénées National Park, camping is prohibited but regulated bivouac is allowed from 19:00 to 09:00 under the park’s location rules. Other protected areas can have different regulations.
Can you hike the GR10 without a tent?
Yes during the main summer accommodation season. The GR10 association lists about 110 staffed accommodation structures and says June through September provides full route-wide lodging capacity. Reservations and exact stage planning remain necessary.
Can you hike the GR10 with a tent?
Yes, and carrying a tent provides greater stage flexibility, but local camping and bivouac regulations must be checked throughout the route. National-park rules do not automatically apply everywhere else.
What is the best time to hike the GR10?
The GR10 association gives approximately mid-June to early October as the broad best period. For a complete thru-hike relying on staffed accommodation, June through September provides the strongest hut and gîte coverage.
Can you hike the GR10 in June?
Yes in some years and sectors, but high passes can retain significant snow. Hourquette d’Ossoue and other high crossings may require snow equipment and experience early in the season.
Which direction should you hike the GR10?
Both directions are valid. Hendaye to Banyuls is traditional and is used by most current GR10 hikers and topoguides. The GR10 association estimates roughly 80% of walkers travel west to east.
What is the wildest section of the GR10?
Ariège is widely regarded as the most isolated section. Current Ariège tourism material says the region represents roughly one quarter of the GR10 and requires greater autonomy than more heavily serviced sectors.
What is the most mountainous section of the GR10?
The central Pyrenees around Vignemale, Hourquette d’Ossoue, Gavarnie and Néouvielle contain many of the route’s most dramatic high-mountain landscapes and its highest crossing.
What is the difference between GR10 and GR11?
The GR10 is the marked long-distance route primarily on the French side of the Pyrenees, while the GR11 crosses primarily on the Spanish side. Both use red-and-white GR markings.
What is the difference between GR10 and the HRP?
The GR10 is an official marked trail that repeatedly visits French valleys. The Haute Randonnée Pyrénéenne is a less standardized high-route concept that stays closer to the main crest when possible and requires greater independent navigation and route choice.
Are there current GR10 closures in 2026?
Yes. As of September 23, 2026, current Ariège tourism information reports fire-related closures and signed detours in multiple sectors, including around Bassiès/Marc and Étang d’Ayes–Cap des Lauzes. Check current notices before entering Ariège.
Can you hike only part of the GR10?
Yes. The western, central, Ariège and eastern sectors all work as independent multi-day journeys, and transport connections in major valleys make section hiking practical.
Plan the Traverse in Sections. Hike the Mountain That Exists That Day.
A 900-kilometre Pyrenean crossing cannot be reduced to one fixed spreadsheet of dates. Build a realistic 45–60 day framework, reserve the true accommodation bottlenecks, know where Ariège requires greater autonomy and then let snow, thunderstorms, fire closures and your own recovery determine the day-to-day route.
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