Set the elevation gain you know you can hold day after day: the tool places your nights on the real lodgings along the GPX track of the loop, then balances the days out. Starting point, direction of travel and bivouac are all adjustable 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 record
+1 200 m/day
Advanced settings
Starting point
Alpine club method: take the longer of the horizontal time and the vertical time (climbing and descending), then add half of the other. As long as you leave them alone, 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 elevation gain: Clavans and Besse sit right on it, the Refuge des Mouterres 1.3 km off). Times estimated excluding breaks, alpine club method (details in the advanced settings). Valley campgrounds and hotels are not listed. Bookings and staffing dates: see the GR54 refuges.
Elevation profile, one band per day
Your plan is ready. How would you like to travel?
Great call!
Organizing 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 onward for July and August. The GPX downloads under the profile, and staffing dates are on the GR54 refuges page. Have a great loop!
To get our latest field notes (trail conditions, refuges, route ideas), leave us your email:
Self-guided trip, turnkey logistics
You walk your own plan, we handle the rest: booking the lodgings 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.
Going 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 comparing notes over dinner. One group is closing out the GR54 in 8 days and will be gone before sunrise to link two passes in a single push. At the next table, a hiker is on day nine with four still to go, and she is heading up to the lakes tomorrow morning before rejoining the trail. Same 188 km loop, same 11,000 m of elevation gain, two completely different treks.
So how many days does the GR54 take? The guidebook answer is a round number: 12 days.
The real answer is a lot more personal. It comes down to your daily elevation budget, the number of meters of climbing you can absorb day after day:
14 or 15 days with the alpine variants or a rest day built in
2 to 5 days if you are targeting one section instead of the whole loop (or running it!)
One conversion up front, then this article stays metric: 188.3 km is about 117 miles, and 11,000 m of climbing is roughly 36,000 ft. Everything you meet on the ground is metric anyway, trail signs, hut boards, the guidebook, and everything is priced in euros, so it is worth getting used to kilometers and meters before you fly out.
The French hiking federation puts the loop at "about a dozen days". The national park publishes four reference itineraries of its own, running from 12 to 15 days:
The four reference starting points, 12 to 15 days
Start
Stated length
Stated distance
Stated elev. gain
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 (start at the train 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 climbing. The stated figures differ from one line to the next because each guidebook folds in its own variants and its own way of measuring. Only L'Argentière-la-Bessée genuinely makes the route longer: the town is not on the loop, so the itinerary adds the connection from the station. The 12 to 15 day range therefore reflects choices about how to cut up the days, not loops of different lengths. The rest of this article is about narrowing that range to your own fitness and the time you actually have.
Doing the math: a GR54 at your own pace
Dividing 188 km by a walking speed gives you a number, but not one that survives contact with this terrain.
On the GR54, elevation is what runs the show: 11,000 m of cumulative climbing across 13 passes, including the Aup Martin at 2,761 m, and exactly as much descending.
To size your trek, divide 11,000 by the elevation gain 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 straight.
1,500 m of climbing 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
Running that math before you leave is what stops you from discovering on day four that the schedule was too ambitious, right when the most committing half of the loop is still ahead.
That division stays an approximation, because it assumes you can stop anywhere. On the ground you sleep where there is a refuge (mountain hut) or some other lodging: a village, a campground, a hotel. That is exactly what the planner at the top of the page handles: you enter your elevation budget, it places your nights on the real lodgings along the track, then balances the days between them.
Finding your daily elevation budget
This number is your cruising pace: the elevation gain you can take in a day and do again tomorrow, then the day after that. The distinction changes everything, because on a multi-day trek fatigue stacks up. Soreness peaks 24 to 48 hours after the effort, and a night in a refuge does not repair you the way a night at home does. The day a schedule cracks is rarely day one, it is day three or day four.
Three ways to find yours, from quickest to most reliable:
Work back from a recent outing. Take your biggest day of the last few months, the one you finished with something left in the tank. Knock 20 to 30 % off it to account for a full week in a row with a multi-day pack, and you have an honest starting figure.
Place yourself by profile. Our article on hiking difficulty levels gives ranges based on how active you are right now. Caught between two lines, take the lower one: you can always add on the way, the reverse is far less forgiving.
Test it over three days. If this is your first time on a long multi-day trek, a short itinerary is the best test bench there is, and day three is the one that talks. A weekend based in a refuge in the Écrins, or a three-day loop in the Valgaudemar, is enough to size yourself up before committing two weeks of vacation.
The terrain then corrects that math. The schist descents off the Col de la Vaurze and the Col de Côte Belle get negotiated step by step, and cable-protected sections do not get run.
A 14 kg bivouac pack also does not descend the way an 8 kg refuge pack does.
The planner at the top of the page reasons over the whole loop. For a single stage, the alpine club method works just as well by hand: take the longer of your horizontal time and your vertical time, then add half of the other. Try it on a stage you already know and you will quickly see which formula matches your own legs.
The GR54 in 7 or 8 days: the sporty version
One week for the loop means 24 to 27 km and 1,400 to 1,600 m of elevation gain per day, with no recovery day anywhere. This is not a format you improvise into: it is for hikers who already string together big days out and know how their body handles 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 a couple of places, leaving the waymarked GR for more direct valley-to-valley lines. The 8-day version keeps the same logic while loosening the vise a little, and it is often the better compromise for fast walkers who want to reach a refuge every evening rather than finish stages by headlamp.
The GR54 in 10 or 11 days: the format we recommend
At 17 to 19 km and 1,000 to 1,100 m of elevation gain per day, days run 6 to 8 hours of walking. You reach the refuge mid-afternoon, which leaves margin on the mornings when the forecast forces a pre-dawn start. This is the rhythm we suggest most often to a regular hiker.
Below 12 days, simply merging guidebook stages stops working: the days come out lopsided, with 10-hour-plus links appearing. The better move is to re-cut the loop around different overnight points. Two examples that balance a 10-day tour nicely: sleep at Besse-en-Oisans rather than Clavans-le-Bas on the first night (1.5 km and 150 m of climbing more, but a shorter second day), and break the Valgaudemar crossing at the Refuge du Clot Xavier Blanc, on the bank of 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 on its own.
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 elevation gain and puts you on the Col de la Muzelle late in the afternoon, exactly when the cumulus start building.
One last piece of advice that costs a single line on a vacation request: book twelve days off for an eleven-day loop. Not to walk an extra day, but so you are not traveling home the morning after you finish. The last stage often wraps up 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 straight off the glacier, around 8 °C (about 46 °F), so nobody stays in long, but it is precisely 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 route. And there is the terrace version, a coffee and your photos, with one habit we recommend: get the map back out and put a name on every pass you crossed and every summit you spotted from the ridges. That works well with two of you, and it works much less well two weeks later, once the valleys have blurred together. It is also the day the phone numbers swapped in refuges turn into plans for next summer.
Worth mentioning too, since it is common practice on the GR20: split your Écrins loop in two. One year from La Chapelle-en-Valgaudemar to Bourg-d'Oisans, for instance, 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, elevation gains and GPX tracks, in our main article on the GR54.
That rhythm, around 15 km and 850 m of elevation gain per day, frees up the time that short formats give away: the detour to the lakes under the Glacier d'Arsine, the Lac Noir and Lac Lérié on the plateau d'Emparis, a late afternoon on the shore of the Lac de la Muzelle, a dawn watch for chamois, and margin against 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 total, with a resupply (or a restaurant) at La Chapelle in the middle of the day. 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 starting 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 elevation gain and more technical ground, but a way off the busiest trail. Even so, this is nowhere near the traffic of a Tour du Mont Blanc.
Arriving by train: L'Argentière-la-Bessée is the only rail station sitting beside the loop. Joining the route over the Col de la Pousterle adds a day of walking on the way in and another on the way out, so 15 days and 223 km in total. 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 around, changes the shape of the second half of the loop. Resupply, a night down in the valley, and you set off again on fresh legs.
Under 7 days: aim for a section, not the loop
In 4 or 5 days the full loop turns into a mountain race. You are better off picking one section and taking 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 via the plateau d'Emparis walks in 3 days, with bus links at both ends.
Over a long weekend, a three-day route in the Valgaudemar or a weekend based in a refuge in the Écrins gives you a real read on the range without booking two weeks 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, in rough order of convenience, are Grenoble, Lyon, Geneva, Turin and Marseille. From the US, the realistic pairing is a flight into Geneva or Lyon, both of which connect onward without much drama. Marseille and Turin work too if the fare is better.
From there you take 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, zero vacation days spent traveling: an 11-day walk fits into 11 days off rather than 13. L'Argentière-la-Bessée is the only rail station on the loop itself, but the trail 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 everything else: you come back to where you started, with no return transfer to arrange and no car stranded on the far side of the range. It is worth choosing your starting point to match your inbound travel rather than the other way around.
Budget one travel day on each side when you request time off, and if you are flying transatlantic, count the jet lag on top: an overnight eastbound flight plus a train usually means arriving too fried to start walking the same afternoon. Timetables also move, with engineering work and replacement coaches on some dates, and July and August couchettes sell out early, so check current schedules on SNCF Connect before you lock in your split.
What tends to wreck a schedule
Early-season snow patches: 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: call 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 a luxury.
Full refuges: at the height of summer, bunk availability sometimes dictates the split rather than your fitness. Book early. The list of lodgings 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 lock in 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. All that is left is 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, in 7, 10 or 14 days. Call Robin directly at 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 kilometers a day on the GR54?
On a 10-day loop the average lands around 19 km and 1,100 m of elevation gain per day. In 13 days it drops to 14 to 16 km. Mileage stays misleading on this terrain: 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 starting 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 elevation gain. Starting 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.
Should you plan a rest day 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 plan one short stage mid-route rather than a run of days with no breathing room.
Does the GR54 take more days than the Tour du Mont Blanc?
Yes, at comparable distance. The classic TMB gets done in 7 to 10 days where the GR54 runs 10 to 13: daily elevation gains are higher and the terrain is 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 you do the GR54 in several trips?
Yes, and it is a good answer when vacation days are short. The loop breaks 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 two weeks off.
