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 out the days. Starting point, direction of travel and bivouac are all 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 best ever
+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. As long as you leave them be, these settings 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?
Good call!
Organising it yourself is still the finest way to make the loop your own, and the split above is a solid base to work from. 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 look after 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, two tables swapping notes over the dinner. One crowd is wrapping up the GR54 in 8 days and will be gone at first light to link two passes in the one go. At the next table a walker is on day nine with four left in her, and she is going up to the lakes in the morning before rejoining the path. Same 188 km loop, same 11,000 m of ascent, two completely different treks.
So, how many days does the GR54 take? The guidebook answer is a nice round number: 12 days.
The real answer is far more personal. It comes down to your daily elevation budget, the number of metres of ascent you can take on 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 yardstick is the Wicklow Way or the Kerry Way, the length will look familiar: at 188.3 km the GR54 sits comfortably in that same bracket. The ascent is where the comparison falls apart. Eleven thousand metres across 13 passes is several times what a Kerry Way week puts under your boots, and it comes in 1,000 m helpings rather than in short pulls. Plan around the climbing, not the kilometres. One small mercy: you are in the eurozone, so no currency to convert and no card charges to think about.
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 every guidebook folds in its own variants and its own way of measuring. Only L'Argentière-la-Bessée genuinely lengthens things: the town is not on the loop, so the itinerary adds the link in from the station. That 12 to 15 day spread is about how the days get carved up, then, not about loops of different lengths. The rest of this article is about narrowing it down to your own form and the time you actually have.
The sums that hold up: a GR54 at your own pace
Dividing 188 km by a walking speed gives you a number. It does not give you anything that survives this terrain.
On the GR54 the ascent is what runs the show: 11,000 m of cumulative climbing over 13 passes, the Aup Martin at 2,761 m among them, and every metre of that back down again.
To size your trek, divide 11,000 by the ascent you know you can absorb day after day with a pack on your back. Not the figure from your best day out ever, the one you can repeat for a week straight.
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 that sum before you go is what stops you working out on day four that the plan was too ambitious, just as the most committing half of the loop comes up.
The division stays an approximation, mind, because it assumes you can stop anywhere. On the ground you sleep where there is a refuge (a mountain hut) or some other accommodation: a village, a campsite, a hotel. That is exactly what the planner at the top of the page sorts out: you put in your elevation budget, 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 again the day after. That distinction changes everything, because on a multi-day route the tiredness piles up. Stiffness peaks 24 to 48 hours after the effort, and a night in a refuge does not repair you the way your own bed at home does. The day a plan falls apart is rarely the first one, it is the third or the fourth.
Three ways to find yours, from quickest to most reliable:
Work back from a recent day out. Take your biggest day of the last few months, the one you finished with a bit left in you. Take 20 to 30 % off it to allow 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 based on how active you are at the moment. Stuck between two lines, take the lower one: you can always add on the way round, the other direction is far less forgiving.
Test it over three days. If this is your first time on a long multi-day route, a short itinerary is the best test bench going, and it is day three that does the talking. 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 you commit a fortnight.
The ground then corrects the sums. 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.
Nor does a 14 kg bivouac pack come down a slope the way an 8 kg refuge pack does.
The planner at the top of the page reasons over the whole loop. For one particular stage, the alpine club method works grand on the back of an envelope: take the longer of your horizontal time and your vertical time, then add half the other. Try it on a day you already know well and you will soon see which formula matches your own legs.
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 a day, with no recovery day anywhere in it. This is not a format you improvise into: it is for walkers who already string big days together and know how their body copes with three long ones back to back.
In practice, a 7-day version means merging several of the guidebook's 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 loosening the grip a little, and it is often the better compromise for quick walkers who would rather reach a refuge every 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 a day, the days run to 6 to 8 hours of walking. You get to the refuge mid-afternoon, which leaves you margin on the mornings when the forecast forces a dawn start. This is the rhythm we suggest most often to a regular hillwalker.
Below 12 days, simply merging guidebook stages stops working: the days come out lopsided, with 10-hour links appearing. Better 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 spreads the stages between them itself.
One merge to avoid unless you are seriously 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, right when the cumulus start building.
A last piece of advice that costs one line on a leave request: book twelve days off for an eleven-day loop. Not to walk an extra day, but so 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 bit sharply.
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 stays in it long, but it is exactly what legs that have swallowed 11,000 m are looking for. On the north side, the thermal baths at Le Monêtier-les-Bains sit right on the GR54. And there is the terrace version, a coffee and your photos, with one habit worth picking up: get the map out and put a name back on every pass you crossed and every summit you spotted from the ridges. It works well with two of you, and it works a lot less well a fortnight later, once the valleys have run into one another. It is also the day the phone numbers swapped in refuges turn into plans for next summer.
And one more option, common enough 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 year after.
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 nearly 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 a 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 the thunderstorms.
To save a day on this split without forcing anything, one merge really works: 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 the whole way to the Refuge des Souffles.
The GR54 in 14 or 15 days: alpine variants and rest days
Two good reasons to go past 13 days:
The alpine variants, on the itinerary from La Grave (14 days): the glacial Lac de l'Eychauda by 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, you are 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 all told. The Fournel valley, with its botanical reserve of alpine eryngium, earns that detour.
On top of those itineraries there is 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 entirely. Resupply, a night down in the valley, and off you go again on fresh legs.
Under 7 days: take a section rather than the loop
In 4 or 5 days the full loop turns into a mountain race. You are far better off picking one section and taking the time over it. 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 feel for the range without booking a fortnight off.
Getting to the start: airports, trains and the last bus
One thing weighs almost as much as your elevation budget when you count your days: how you actually get to the foot of the loop.
The useful airports are Grenoble, Lyon, Geneva, Turin and Marseille. From Dublin, Geneva and Lyon are the two to aim for, though outside the peak weeks you will usually be routing through London, Paris or Amsterdam rather than flying direct, so build the connection into your first day rather than assuming an early arrival.
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 a single day of leave 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 makes the rest easy: you come back to where you started, with no return transfer to arrange and no car sitting on the far side of the range. Pick your starting point to suit your inbound travel rather than the other way around.
Budget a travel day at each end when you are working out the leave. Timetables shift 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 knock a schedule sideways
Early-season snow patches: some years the Col de l'Aup Martin stays awkward until mid-July. When it is impassable, the variant by 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: give them a ring.
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 plan is no luxury.
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, you slow down noticeably, especially 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 is handling the logistics. On a guided trip the stages are calibrated and the refuges booked before you leave. 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. Give Robin a ring 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.
The iconic trek around Mont Blanc in 7 days through the most scenic trails, from hotel to hotel.
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Frequently asked questions
How many kilometres a day on the GR54?
On a 10-day loop the average works out around 19 km and 1,100 m of ascent a day. Over 13 days it comes down 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 by 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 extra walking day in each direction over the Col de la Pousterle.
Is a rest day worth planning on the Écrins loop?
On formats of 10 days and up, 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 take more days than the Tour du Mont Blanc?
It does, 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 good answer when the annual leave is tight. 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.
