Tour du Mont Blanc: ten days around the massif
The Tour du Mont Blanc (TMB) is the quintessential European long-distance trek: 170 kilometres circling Western Europe's highest mountain, crossing borders between France, Italy, and Switzerland through eleven distinct alpine passes.
The numbers sound intimidating—roughly 10,000 metres of cumulative ascent and descent, matching the elevation profile of climbing Everest from sea level. In practice, the brilliance of the Alpine hut system (refuges / rifugi) means you complete this epic traverse carrying little more than a change of clothes, trail runners, and a silk sleeping bag liner.
Les Houches to Les Contamines: the western flanks
Starting in Les Houches beneath the Bellevue cable car, the trail ascends through spruce forests before traversing the suspension bridge over the roaring glacial torrent of the Glacier de Bionnassay.
Crossing the Col de Voza, the French Val Montjoie opens below: manicured meadows dotted with brown Tarine cattle wearing heavy bronze bells. The sonic signature of the TMB is this constant, resonant chime echoing across valley walls.
On the TMB, borders exist only as culinary shifts: a breakfast of baguettes and confiture in France becomes espresso and polenta in Italy, and birchermüesli in Switzerland thirty-six hours later.
The Italian side: sheer granite and Val Ferret
Crossing the Col de la Seigne (2,516m) brings you into Italy. The south face of the Mont Blanc massif is radically different from the French side: steep, jagged, black granite needles (the Aiguilles Noires) and hanging seracs dropping vertically into the Val Vény.
Rifugio Elisabetta sits perched on a rocky spur beneath the Pyramides Calcaires. Staying in a 12-person dormitory requires earplugs and tolerance, but sitting on the terrace at 6:30pm watching the evening sun turn the Miage glacier amber while sharing a carafe of Nebbiolo makes the dorm snoring irrelevant.
- Booking timeline: Official refuge reservations open in October/November of the preceding year via the official TMB booking portal; popular huts like Bonatti sell out within 48 hours.
- Variant routes: Taking the Fenêtre d'Arpette variant (2,665m) into Switzerland cuts over steep boulder fields with dramatic views of the Trient glacier, but requires dry rock conditions.
- Weight budget: A base pack weight under 7kg prevents knee and Achilles tendon tendonitis over ten consecutive days of 1,000m descents.
The Grand Balcon Sud into Chamonix
The final day traverses the Grand Balcon Sud across the Aiguilles Rouges nature reserve. Climbing the steel ladders bolted into the vertical rock at Les Chéserys, you pass ibex grazing on alpine turf without fearing hikers.
At Lac Blanc (2,352m), the entire Mont Blanc massif—from the Dôme du Goûter across the Mer de Glace to the Grandes Jorasses—reflects in the still, cobalt water. Descending into the bustle of Chamonix, your boots caked in granite dust, you feel changed by the sheer scale of the high ice.
Planning your Tour du Mont Blanc itinerary or want advice on stage splits and hut bookings? Send me a message.