TMB in 5 Days: Possible, but at What Cost?

Five days of leave, not a day more. That is often where the thinking begins: can you genuinely complete the 170 km Tour du Mont-Blanc in five days without breaking into a run?

The answer is yes. But it comes at a cost.

Without a buffer day, a thunderstorm or a fog-bound pass can knock out a stage and unravel your entire schedule. And in the mountains, pressing on through poor weather just to keep to a timetable is a decision that safety simply will not permit.

Before you set off, you need to understand what this express pace entails, and above all what you will not have time to see.

At Altimood, we have walked the TMB and all its variants. We have tested every pass, every shortcut, every possible transfer. This article sets things out honestly: here is the realistic 5-day itinerary, the sections you will have to sacrifice, the fitness level required, and why, as professionals, we would rather take you on the 7-day format.

Why walk the TMB in 5 days?

The reasons tend to be the same: a narrow window between two working weeks, a tighter accommodation budget (two fewer nights is not insignificant), or simply the pull of a sporting challenge. The standard duration for the Tour du Mont-Blanc is 7 to 10 days. The 5-day TMB appeals to trail runners who want to experience the route at a brisk walking pace, without tipping into racing.

All of those reasons are perfectly valid. The difficulty is not wanting to go quickly. It is failing to recognise what the clock takes away.

Tour du Mont-Blanc 5-day itinerary

To fit into 5 stages, you must merge certain days and use transfers (bus or taxi) on the least alpine sections. Here is a realistic itinerary, tested on the ground. The 138 km total (against 170 km for the full TMB) reflects the Swiss Val Ferret being replaced by a bus and the shortcuts that come from merging stages.

Some agencies offer a "TMB in 5 days" that covers only the northern half of the circuit (Courmayeur to Chamonix, roughly 75 km), with van transfers to skip the French sections. That is not the same trek. The itinerary below completes the full loop.

Day 1: Les Houches → Les Chapieux

Two stages rolled into one. From Les Houches, climb to Col de Voza (1,653 m), descend to Les Contamines-Montjoie, then press on to Notre-Dame-de-la-Gorge and the Col du Bonhomme (2,329 m) and Croix du Bonhomme (2,479 m).

• Distance: ~36 km
• Elevation: +2,400 m / -1,850 m
• Walking time: 10-12h
• Accommodation: Auberge de la Nova, Les Chapieux

This is the longest day. Two passes above 2,300 m in a single day, starting from 1,010 m. A dawn start is essential. You will most likely need to arrive in Les Houches the evening before.

• Distance :↔ 34.9 km
• Dénivelé positif :↗ 2286 m
• Dénivelé négatif :↘ 1709 m

Day 2: Les Chapieux → Courmayeur

Combining stages 3 and 4. Col de la Seigne (2,516 m) marks the Italian frontier. The landscape changes abruptly: Beaufortain pastures give way to the south face of Mont-Blanc, vertical walls and hanging glaciers. The descent crosses Val Veni, follows Lac Combal, and reaches Courmayeur.

• Distance: ~28 km
• Elevation: +1,450 m / -1,700 m
• Walking time: 8-9h
• Accommodation: hotel or guesthouse in Courmayeur (1,226 m)

Crossing Col de la Seigne is the standout moment of this day. If you are running ahead of schedule, stop at the Rifugio Elisabetta terrace for a caffè with a view.

• Distance :↔ 28.5 km
• Dénivelé positif :↗ 1445 m
• Dénivelé négatif :↘ 1784 m

Day 3: Courmayeur → Champex-Lac (with transfer)

The ascent to Refuge Bonatti (2,026 m) is steep, but from the terrace, the Dent du Géant (4,013 m) and Grandes Jorasses (4,208 m) stand less than 10 km away with nothing in the way. The trail continues to Grand Col Ferret (2,537 m), the Italy-Switzerland border, then descends to La Fouly. From La Fouly, postal buses take you to Champex-Lac in 45-50 minutes (changing at Orsières), bypassing the Swiss Val Ferret stage.

• Distance on foot: ~24 km
• Elevation on foot: +1,600 m / -1,300 m
• Walking time: 7-8h + bus transfer
• Accommodation: hotel or gîte in Champex-Lac (1,466 m)

• Distance :↔ 30.4 km
• Dénivelé positif :↗ 1771 m
• Dénivelé négatif :↘ 1389 m

Day 4: Champex-Lac → Trè-le-Champ

Two options from Champex: the classic path via Bovine (more straightforward) or the Fenêtre d'Arpette (2,665 m, more committing). Both lead to Trient. Then carry on over Col de Balme (2,204 m), back into France with the Chamonix valley below. Descent to Trè-le-Champ.

• Distance: ~28 km (via Bovine) or ~30 km (via Arpette)
• Elevation: +1,700 m / -1,800 m (Bovine) or +2,000 m / -2,100 m (Arpette)
• Walking time: 9-10h
• Accommodation: gîte in Trè-le-Champ or bus down to Argentière/Chamonix

A key turning-point day. The Fenêtre d'Arpette is tempting, but after three days of hard effort, Bovine offers a more reasonable rhythm without sacrificing the Col de Balme panorama.

• Distance :↔ 28.4 km
• Dénivelé positif :↗ 1791 m
• Dénivelé négatif :↘ 1822 m

Day 5: Trè-le-Champ → Les Houches

Final day. Climb to the Refuge de la Flégère then traverse the south balcony of the Aiguilles Rouges, facing the Mont-Blanc chain. The Grand Balcon trail passes over Le Brévent (2,525 m) before the long descent to Les Houches.

• Distance: ~22 km
• Elevation: +1,400 m / -1,700 m
• Walking time: 7-8h
• Accommodation: you have arrived!

The Flégère-Brévent traverse offers 12 km of balcony trail facing the Aiguille Verte, Les Drus, and the Aiguille du Midi. If fatigue sets in, the Brévent or Flégère cable car can shorten the descent.

• Distance :↔ 21.6 km
• Dénivelé positif :↗ 1352 m
• Dénivelé négatif :↘ 1788 m

What you miss in 5 days

The 5-day TMB is Mont-Blanc on fast-forward. You will see all three countries and the major passes. But here is what falls away:

The Swiss Val Ferret (stage 7). The trail between La Fouly and Champex crosses flowering meadows, follows the Dranse, and passes through timber hamlets darkened by age. It is the most distinctly Swiss stage of the TMB, the one where the pace eases off. In 5 days, it is swapped for a bus.

The Col du Tricot variant (stage 1). By merging the first two stages, you will most likely choose Col de Voza (quicker) over Col du Tricot. You will miss the suspended footbridge over the Bionnassay torrent and the view down onto the glacier 200 m below.

Time to pause. Watching an ibex on the ridge of Mont de la Saxe, sitting on the Refuge Bonatti terrace as the sun lights up the Grandes Jorasses. All of that requires time, and in 5 days, time is in short supply.

Recovery. With stages of 25 to 36 km and 1,500 to 2,400 m of ascent each day, fatigue accumulates quickly. By day 3, your knees and feet will be reminding you that the body is not a machine.

Required fitness level

The 5-day TMB is not an introductory trek. To attempt it:

• Experience: you should have completed multi-day treks with stages of 20 km+ and 1,200 m of ascent
• Training: able to walk 8 hours in the mountains without difficulty, for 5 consecutive days
• Feet and knees: accustomed to long descents. The 1,800 m of descent on day 4 is punishing for unprepared joints
• Self-sufficiency: able to read a map, manage your pace, anticipate weather, and accept adapting your plans for your own safety

In 5 days, there is no margin for a rest day. If the weather deteriorates on a pass, you have no buffer day to fall back on.

Budget: 5 days vs 7 days

Five days means two fewer nights of accommodation. In a refuge, expect roughly 60 to 80 EUR per night for half-board. The saving comes to around 120 to 160 EUR. Add the La Fouly-Champex bus transfer (around 15 EUR).

All told, the 5-day TMB done independently costs between 400 and 600 EUR per person (half-board accommodation, excluding return travel and packed lunches). For 7 days, expect 500 to 750 EUR. The difference is real but modest in relation to the overall investment (travel, gear, time off work).

Our view: why we prefer 7 days

We would not put you off if 5 days is all you have. The shorter TMB remains a strong experience. But when there is a choice, 7 days changes the very nature of the trek. I completed my first TMB in 3 days with a full pack. Performance ticked off, but I was quite content to do it again straight after with a group. The stopwatch did not leave as many lasting images.

In 7 days, stages drop from 28-36 km to 15-20 km. Daily elevation falls from 2,000 m to 1,000 m. You move from "performance mode" to "contemplation mode." You have time to take the variants (Col du Tricot, Col des Fours, Fenêtre d'Arpette) without pushing into the red. You sleep better, eat better, and have time to lift your gaze.

TMB in 5 days: with or without a guide?

Doing the Tour du Mont-Blanc in 5 days without a guide is achievable if you have experience of multi-day alpine treks and can read a 1:25,000 topographic map. You manage the route, refuge bookings, and weather adjustments yourself.

With a mountain guide, the 5-day format becomes more comfortable: no navigation to worry about, pace adjusted in real time, and the difficult decisions when fatigue or weather complicate matters rest with a professional.

Make the choice that suits you.

How to reach the start (Les Houches)

Les Houches is accessible by train via the Saint-Gervais-Les-Bains-Le Fayet station, then a local TER connection to Les Houches (10 min). By car, long-stay parking is available at the trailhead (Prarion car park or Bellevue car park). From Chamonix, the Chamonix-Les Houches bus service runs throughout the day in season.

When to go and refuge bookings

The ideal window falls between late June and mid-September. In July and August, TMB refuges fill up several months ahead. For a 5-day departure, book at least 3 to 4 months in advance, particularly for Les Chapieux (Auberge de la Nova) and Refuge de la Flégère, which are the most sought-after stops on this itinerary.

On the French side, the TMB does not pass through a National Park but crosses nature reserves (Aiguilles Rouges, Contamines-Montjoie) and communes with specific by-laws. In practice, bivouacking is channelled to designated areas near refuges (Croix du Bonhomme, Balme) or communal zones (aire de la Rollaz in Les Contamines, Les Chapieux). Check the rules commune by commune before setting out. In Italy (Aosta Valley), bivouacking is strictly prohibited below 2,500 m altitude. In Val Veni and the Italian Val Ferret, you must use official campsites or sleep in refuges. In Switzerland, regulations vary by canton: in the Swiss Val Ferret (Valais), bivouacking is tolerated above the tree line but prohibited in nature reserves. Check before you leave.

For more detail on the best time to go, see our article When to do the Tour du Mont-Blanc.

Frequently asked questions

Can you do the TMB in 5 days without training?

No. Stages of 28 to 36 km with 1,500 to 2,400 m of ascent per day require specific preparation. Allow at least 2 to 3 months of training with long mountain outings (20 km+, 1,000 m ascent) before departure. The gym is a reasonable start but does not fully prepare your joints for what they will encounter on varied terrain.

Do you need to book refuges in advance?

Yes, it is essential in summer. TMB refuges (especially on the French and Italian sides) fill up quickly. Book 3 to 4 months ahead for a July-August departure.

What budget should you plan for the 5-day TMB?

Between 400 and 600 EUR per person for an independent trip (half-board accommodation, excluding return travel and packed lunches). A mountain guide for a private group is an additional cost, but it is shared among participants.

Is the 5-day TMB dangerous?

The TMB is not a technical route, but the 5-day format reduces safety margins. Without a buffer day, a thunderstorm on a 2,500 m pass or a knee injury on day 3 can compromise the remainder. Accumulated fatigue also raises the risk of falls on steep descents.

Can you do the 5-day TMB with children?

No, this format is not suitable for children. Days of 8 to 12 hours of walking and the daily elevation gains are well beyond what a child can manage. For a family TMB, opt for a 10 to 12-day format or selected sections.

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