Set the ascent you know you can hold day after day: the tool places your nights on the real accommodation along the GPX track of the loop, then evens the days out. Starting point, direction of travel and bivouac all sit in the advanced settings. Pace and advice are covered in the full article.
Daily elevation budget
what you can repeat day after day, not your personal best
+1 200 m/day
Advanced settings
Starting point
Alpine club method: take the longer of the horizontal time and the vertical time (ascent and descent), then add half the other. Leave them alone and these settings simply follow your elevation budget.
Length of the loop
12 days
Positions measured on the GPX track of the loop (188.3 km, 11,000 m of ascent: Clavans and Besse sit on it, the Refuge des Mouterres 1.3 km off). Times estimated excluding breaks, alpine club method (details in the advanced settings). Valley campsites and hotels are not listed. Bookings and warden dates: see the GR54 refuges.
Elevation profile, one band per day
Your plan is ready. How would you like to travel?
Sound choice!
Organising it yourself is still the best way to make the loop your own, and the split above is a serious starting point. Book the refuges early, from spring onwards for July and August. The GPX downloads under the profile, and warden dates are on the GR54 refuges page. Enjoy the loop!
For our latest notes from the ground (path conditions, refuges, route ideas), leave us your email:
Self-guided trip, turnkey logistics
You walk your own plan and we handle the rest: booking the accommodation on your split (adjusted to what they have free), planning advice and support while you are out there. Leave your details and we'll come back to you with a proposal.
Walking with a guide
Our guides take small groups onto the GR54 and through the Écrins every summer. Leave your details and we'll send you the next departures.
A July evening at the gîte (guesthouse) in Le Désert-en-Valjouffrey, and two tables are comparing route cards over dinner. One party is finishing the GR54 in 8 days and will be away at first light to link two passes in one go. At the other table, a walker is on day nine with four left, and she is heading up to the lakes in the morning before rejoining the path. The same 188 km loop, the same 11,000 m of ascent, two entirely different treks.
How many days does the GR54 take? The guidebook answer is a tidy round number: 12 days.
The real answer is rather more personal. It comes down to your daily elevation budget, the number of metres of ascent you can absorb day after day:
14 or 15 days with the alpine variants or a rest day
2 to 5 days if you are after one section rather than the whole loop (or running it!)
If your reference point is a British long-distance path, the distance will not frighten you: 188.3 km is roughly a Coast to Coast, and you have probably walked further in a week. The ascent is the part that sits in another league. Eleven thousand metres over 13 passes is more than three times what a full week in the Lake District or Eryri tends to produce, and it arrives in 1,000 m lumps rather than in 400 m ones. Plan around the ascent, not the mileage.
The French walking federation puts the loop at "about a dozen days". The national park publishes four reference itineraries of its own, from 12 to 15 days:
The four reference starting points, 12 to 15 days
Start
Stated length
Stated distance
Stated ascent
Bourg-d'Oisans
13 days
194 km
+11,950 m
La Chapelle-en-Valgaudemar
12 days
184 km
+11,650 m
La Grave
14 days
186 km
+12,500 m
L'Argentière-la-Bessée (starting from the railway station)
15 days
223 km
+13,500 m
The starting point changes, the loop does not: from Bourg-d'Oisans, La Grave or La Chapelle-en-Valgaudemar, it is the same GPX track of 188 km and 11,000 m of ascent. The stated figures differ from line to line because each guidebook folds in its own variants and its own method of measurement. Only L'Argentière-la-Bessée genuinely lengthens the route: the town is not on the loop, so the itinerary adds the link from the station. The 12 to 15 day spread therefore reflects decisions about how to carve up the days, not loops of different lengths. The rest of this article is about narrowing that spread to your own form and the time you actually have.
The arithmetic that works: a GR54 at your own pace
Dividing 188 km by a walking speed produces a number. It does not produce a plan that survives this terrain.
On the GR54 the ascent runs the show: 11,000 m of cumulative climbing across 13 passes, the Aup Martin at 2,761 m among them, and exactly as much descent.
To size your trek, divide 11,000 by the ascent you know you can absorb day after day with a pack on. Not the figure from your best single day out, the one you can repeat for a week on the trot.
1,500 m of ascent per day: 7 to 8 days
1,200 m per day: 9 to 10 days
1,000 m per day: 11 days
850 m per day: 13 days
Doing this sum in advance is what saves you from working out on day four that the schedule was optimistic, precisely when the most committing half of the loop is still to come.
The division stays an approximation, because it assumes you can stop anywhere. In practice you sleep where there is a refuge (mountain hut) or some other accommodation: a village, a campsite, a hotel. That is what the planner at the top of the page does for you: enter your elevation budget and it places your nights on the real accommodation along the track, then evens out the days between them.
Finding your daily elevation budget
This figure is your cruising rate: the ascent you can take in a day and do again tomorrow, and then the day after. The distinction matters, because on a multi-day route fatigue accumulates. Stiffness peaks 24 to 48 hours after the effort, and a night in a refuge does not repair you the way your own bed does. The day a schedule cracks is rarely the first, it is the third or the fourth.
Three ways to find yours, quickest first, most reliable last:
Work back from a recent walk. Take your biggest day of the past few months, the one you finished with something in reserve. Take 20 to 30 % off to account for a full week on the trot with a multi-day pack, and you have an honest starting figure.
Place yourself by profile. Our article on hiking difficulty levels sets out ranges according to how active you are at the moment. Caught between two lines, take the lower: you can always add on the way round, the reverse is much less forgiving.
Test it over three days. If this is your first long multi-day route, a short itinerary is the best test bench available, and it is day three that tells you anything. A weekend based in a refuge in the Écrins, or a three-day round in the Valgaudemar, is enough to take your own measure before committing a fortnight.
The ground then corrects the sum. The schist descents from the Col de la Vaurze and the Col de Côte Belle are taken step by step, and fixed-cable sections are not rushed.
A 14 kg bivouac pack does not descend the way an 8 kg refuge pack does, either.
The planner at the top of the page reasons over the whole loop. For a single stage, the alpine club method works perfectly well on the back of an envelope: take the longer of your horizontal time and your vertical time, then add half the other. Try it against a day you already know well and you will soon see which formula matches your legs. Naismith, for the record, tends to flatter you on this sort of descent.
The GR54 in 7 or 8 days: the fast version
A week for the loop means 24 to 27 km and 1,400 to 1,600 m of ascent per day, with no recovery day anywhere in it. This is not a format to improvise into: it is for walkers who already string big days together and know how their body handles three long ones back to back.
In practice, a 7-day version means merging several guidebook stages into single days and, in one or two places, leaving the waymarked GR for more direct valley-to-valley lines. The 8-day version keeps the same logic while easing the vice slightly, and it is often the better compromise for quick walkers who would rather reach a refuge each evening than finish stages by head torch.
The GR54 in 10 or 11 days: the format we recommend
At 17 to 19 km and 1,000 to 1,100 m of ascent per day, days run to 6 to 8 hours of walking. You arrive at the refuge in mid-afternoon, which leaves margin on the mornings when the forecast forces a dawn start. This is the rhythm we suggest most often to a regular walker.
Below 12 days, merging guidebook stages stops working: the days come out uneven, with 10-hour links appearing. The better approach is to re-cut the loop around different overnight points. Two examples that balance a 10-day round nicely: sleep at Besse-en-Oisans rather than Clavans-le-Bas on the first night (1.5 km and 150 m of ascent more, but a shorter second day), and break the Valgaudemar crossing at the Refuge du Clot Xavier Blanc, beside the Séveraisse, between Vallonpierre and Les Souffles. All four of those overnight points are in the planner at the top of the page: set the budget around 1,100 m and it distributes the stages between them itself.
One merge to avoid unless you are unusually durable: linking Le Désert-en-Valjouffrey and the Lac de la Muzelle without a night at Valsenestre. That day goes past 2,000 m of ascent and puts you on the Col de la Muzelle late in the afternoon, just as the cumulus start to build.
A final piece of advice that costs one line on a holiday request: book twelve days off for an eleven-day loop. Not to walk an extra day, but so that you are not travelling home the morning after you finish. The last stage often ends in the early afternoon, and going straight onto a road or a train closes the trek a little abruptly.
That twelfth day fills itself. A morning with your feet in the Séveraisse at La Chapelle-en-Valgaudemar if you finish on the south side: the water comes off the glacier, so nobody lingers in it, but it is exactly what legs that have swallowed 11,000 m are asking for. On the north side, the thermal baths at Le Monêtier-les-Bains sit directly on the GR54. And there is the terrace version, a coffee and your photographs, with one habit worth adopting: get the map out and put a name back on every pass you crossed and every summit you picked out from the ridges. It works well with two of you and much less well a fortnight later, once the valleys have run together. It is also the day the phone numbers swapped in refuges turn into plans for next summer.
One more option, common practice on the GR20: split your Écrins loop in two. One year from La Chapelle-en-Valgaudemar to Bourg-d'Oisans, say, and the far half the following year.
The GR54 in 12 or 13 days: the guidebook split
The classic split from Bourg-d'Oisans runs to 13 stages of 3 h 30 to 9 h of walking, with a night in almost every valley. We break them down one by one, with distances, ascent figures and GPX tracks, in our main GR54 article.
That rhythm, around 15 km and 850 m of ascent per day, frees up the time the short formats give away: the detour to the lakes below the Glacier d'Arsine, the Lac Noir and Lac Lérié on the plateau d'Emparis, a late afternoon beside the Lac de la Muzelle, an early morning watching chamois, and margin against thunderstorms.
To save a day on this split without forcing anything, one merge really does work: the descent from the Lac de Vallonpierre to La Chapelle-en-Valgaudemar (3 h 30) followed by the climb back up to the Refuge des Souffles (4 h 30). Eight hours of walking in total, with a resupply (or a restaurant) at La Chapelle in the middle of the day. As a bonus, the climb runs in forest shade all the way to the Refuge des Souffles.
The GR54 in 14 or 15 days: alpine variants and rest days
Two good reasons to go beyond 13 days:
The alpine variants, on the itinerary from La Grave (14 days): the glacial Lac de l'Eychauda via the Pas de l'Âne and the Col des Grangettes, then the Refuge de l'Olan and the Col de Colombes above the Valgaudemar. More ascent and more technical ground, but a way off the busiest path. Even then, this is nowhere near the traffic of a Tour du Mont Blanc.
Arriving by train: L'Argentière-la-Bessée is the only railway station sitting beside the loop. Joining the route over the Col de la Pousterle adds a walking day in and another out, so 15 days and 223 km in total. The Fournel valley, with its botanical reserve of alpine eryngium, earns that detour.
To those itineraries add one option we took years to schedule ourselves: the rest day. A pause at La Chapelle-en-Valgaudemar or Vallouise, halfway round, changes the character of the second half. Resupply, a night down in the valley, and you set off again on fresh legs.
Under 7 days: take a section rather than the loop
In 4 or 5 days the full loop becomes a mountain race. Better to pick one section and take the time to walk it properly. The Vallouise to La Chapelle-en-Valgaudemar leg concentrates the wildest side of the tour, with the Aup Martin and the Lac de Vallonpierre: it is the one we chose for our Écrins traverse in 5 days. On the north side, La Grave to Bourg-d'Oisans over the plateau d'Emparis walks in 3 days, with bus links at both ends.
Over a long weekend, a three-day round in the Valgaudemar or a weekend based in a refuge in the Écrins gives you a proper sense of the range without booking a fortnight off.
Getting to the start: airports, trains and the last bus
One factor weighs almost as much as your elevation budget when you count your days: how you actually reach the foot of the loop.
The useful airports are Grenoble, Lyon, Geneva, Turin and Marseille. From London or Manchester, Geneva and Lyon are the straightforward pairings, and both are served often enough that you can pick a morning flight and still be in a valley by evening. Turin and Marseille are worth a look if the fare is better.
From the airport it is a TGV or a regional train to Grenoble or Gap, then the local bus into the valley:
Grenoble to Bourg-d'Oisans or La Grave
Briançon to Vallouise or Le Monêtier-les-Bains
Gap to La Chapelle-en-Valgaudemar
Once you are in France there is also the Paris to Briançon night train, which leaves the Gare d'Austerlitz around 21:00 and reaches Gap around 06:50, L'Argentière-les-Écrins around 08:00 and Briançon around 08:30. Two nights in a couchette and not one holiday day spent travelling: an 11-day walk fits into 11 days off rather than 13. L'Argentière-la-Bessée is the only railway station on the loop itself, but the path does not run through the town, and joining the GR54 over the Col de la Pousterle adds a walking day at each end, which is where the 15-day format comes from.
The GR54 being a loop simplifies the rest: you come back to where you started, with no return transfer to arrange and no car left on the far side of the range. Choose your starting point to suit your inbound travel rather than the other way around.
Budget a travel day at each end when you work out your leave. Timetables move about, with engineering work and replacement coaches on certain dates, and July and August couchettes go early, so check current schedules on SNCF Connect before you fix your split.
What tends to derail a schedule
Early-season snow patches: in some years the Col de l'Aup Martin stays awkward until mid-July. When it is impassable, the variant via the Fournel valley and the Pas de la Cavale reaches the Refuge du Pré de la Chaumette from the other side, at the cost of a very long day out of Vallouise. Refuge wardens know the state of the passes in real time: ring them.
Summer thunderstorms: the rule of being over the pass by 13:00 can cut short a stage you had planned as a double. In July and August a spare day in the schedule is not extravagance.
Full refuges: at the height of summer, bed availability sometimes dictates the split rather than your form. Book early. The list of accommodation on the GR54 is in our main article on the tour.
Pack weight: fully self-sufficient with tent, stove and food, progress slows noticeably, particularly on the technical descents. Compare the two approaches with our bivouac gear list and our article on mountain huts versus gîtes before you fix a number of days.
Walking the Écrins loop with a guide
The number of days also depends on who handles the logistics. On a guided trip the stages are calibrated and the refuges booked before departure. That leaves walking at your own pace:
Écrins traverse in 5 days: the range condensed into its wildest section, in a small group. Next departure listed on the page.
Private, tailor-made Écrins tour: a dedicated mountain leader and an itinerary built around your elevation budget, over 7, 10 or 14 days. Ring Robin directly on 33769447866.
Go hiking in the mountains to enjoy the sunset, a shepherd's meal cooked on the coals and fall asleep under the stars sky. A 2 days hiking trip in the Alps.
A 5-day loop through the largest natural reserve in the Alps, accessible by train.
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Frequently asked questions
How many kilometres a day on the GR54?
On a 10-day loop the average settles around 19 km and 1,100 m of ascent per day. Over 13 days it drops to 14 to 16 km. Distance stays misleading on this ground: an 11 km stage crossing the Col de la Vaurze asks more of you than a 20 km valley stage.
How many days for the GR54 with the alpine variants?
The itinerary from La Grave with the alpine variants (Lac de l'Eychauda via the Pas de l'Âne, Pas de l'Olan and Col de Colombes) is published as 14 days, for around 12,500 m of ascent. From the station at L'Argentière-la-Bessée, count on 15 days and 223 km, with an additional walking day in each direction over the Col de la Pousterle.
Should you plan a rest day on the Écrins loop?
On formats of 10 days and above, a full or half day off at La Chapelle-en-Valgaudemar or Vallouise often decides how the end of the loop goes. Both villages let you resupply and sleep down in the valley. If your schedule is tight, at least build in one short stage mid-route rather than a run of days with no breathing space.
Does the GR54 need more days than the Tour du Mont Blanc?
Yes, at comparable distance. The classic TMB is walked in 7 to 10 days where the GR54 runs to 10 to 13: the daily ascent is greater and the ground more technical, with fewer resupply points. The TMB even compresses down to 5 days in its short version, a format with no sustainable equivalent on the GR54. See our full Tour du Mont Blanc article to compare the two loops.
Can the GR54 be done in several trips?
Yes, and it is a sensible answer when the holiday allowance is short. The loop divides naturally into 3 to 5 day legs between the valleys served by bus: Bourg-d'Oisans, La Grave, Vallouise and La Chapelle-en-Valgaudemar. One summer for the north side, the next for the south, and the tour is complete without booking a fortnight.
