How difficult is the Walker's Haute Route?

Two halves that have almost nothing in common. The first fourteen kilometres are Chamonix valley floor: river-level path through pine and larch, gravel track, and enough tarmac through Les Praz, Les Tines and Argentière that the day feels like an approach rather than a start. It is busy, level, and never more than a few minutes from a bus stop, a bakery or a station. Past Le Tour the valley runs out and the walking changes completely, onto open grazing and ski-area slopes climbing steadily to Col de Balme at 2191 m, a broad grassy saddle with a refuge on it and the French and Swiss border running through it. The descent is the first proper drop of the route, roughly 900 m on grass and stony path into the flat green floor of the Trient valley. Trient itself is a scatter of chalets round a pink church, and the section carries on past it, turning back up the valley on a rising forest track towards the Trient glacier. Everything from the col onwards is Switzerland: different money, different signposts, different hut culture.

Navigation: The Chamonix valley half is a web of parallel paths on both banks and it barely matters which you take, they all run up-valley towards Argentière and Le Tour. From Le Tour to Col de Balme the route shares the Tour du Mont Blanc and carries French red-and-white GR flashes, which is the only stretch of the whole Haute Route with the continuous painted waymarks of a recognised long-distance route. At the col the system changes: Swiss signposts are yellow, give place names and walking times rather than distances, and add a white-red-white tip where the path is graded a mountain trail. Nothing anywhere says Haute Route. You navigate by tonight's village name, which here means Trient. The usual error at Col de Balme is taking the balcony path towards Col de la Forclaz instead of the direct descent to Trient. Both are properly signed and both are used, but they end in different places and only one of them puts you at the foot of the next day's climb.

In poor weather: The valley half is weatherproof. It is low, wooded and served by transport, so rain here costs comfort and nothing else. Col de Balme is the exposed part: a wide grassy saddle at 2191 m with no shelter and no reason to linger, taking the full westerly, and in cloud it gives up the Mont Blanc view that is most of the point of the climb. The descent to Trient is on grass and it gets greasy. Afternoon build-up is the normal summer pattern here and the col is the wrong place to meet it, so this is a morning crossing.

Escape options: Easier than anywhere else on the route. The Chamonix valley bus and the Mont Blanc Express serve Les Praz, Les Tines, Argentière, Montroc and Le Tour, so the first half can be abandoned or shortened at will. Between Le Tour and Trient there is nothing but the refuge at the col. From Trient, PostBus line 213 runs down to Martigny over Col de la Forclaz and the other way to Le Châtelard for the train back into the Chamonix valley, which makes Trient the natural place to cut the trip short or restart it.

The route's first real fork, followed by its one genuinely ordinary day. The climb from the Trient valley starts as a track beside the glacier torrent and turns into a long stony staircase, then a boulder field, then a narrow notch in the Écandies ridge at 2665 m barely wide enough to stand in. The eastern side is the hard part: 300 m of steep, loose descent over blocks before the ground relents into a long green side valley and eases all the way to Champex-Lac. From Champex the character collapses into something much gentler and stays there for twenty kilometres. Forest lanes drop to the Val de Bagnes floor through Sembrancher, then field paths and tarmac cross the valley bottom to Le Châble at 722 m, the lowest ground on the entire route and the only stretch that feels like ordinary Swiss countryside rather than mountains. Everything after Le Châble climbs. The section ends part-way up the hillside above the valley, on the zigzag of hamlet lanes and forest path through Cotterg, Fontenelle and Clambin that leads to the lifts and the high ground.

Navigation: Straightforward except at the top of the Fenêtre d'Arpette, where the way across the boulder field is carried by cairns and paint on rock rather than by a trodden line, and in cloud those cairns are the route. Below that everything is on the Swiss yellow signpost network. From Champex you follow Sembrancher and then Le Châble, and there are many parallel lanes and farm tracks that all get there. Above Le Châble the signs read Verbier, Clambin and Les Ruinettes: the line goes above Verbier on the hillside rather than through the resort, so do not aim for the town centre unless you want it. This is the section where the absence of a single waymark matters least, because every destination is a real village that every signpost knows.

In poor weather: The Fenêtre is the one crossing here worth rescheduling. Snow lingers in the notch and on the boulder field well into July, and where it covers boulders it hides the gaps between them. Wet rock on the eastern descent is what turns a hard afternoon into a very slow one. In poor weather the Bovine alternative exists precisely for this and costs nothing but height. Everything from Champex to the far side of Le Châble is walkable in anything, though the field crossings on the valley floor below Sembrancher have little shade and are hot work in settled weather.

Escape options: Good throughout, apart from the Fenêtre itself, where once committed the choice is to finish it or return the way you came. Champex-Lac has a postbus. Sembrancher and Le Châble are both on the railway from Martigny, so the whole valley stretch can be skipped or rejoined by train. From Le Châble a gondola runs up to Verbier and a second on to Les Ruinettes, in service from roughly mid-May to the end of October, which removes most of the 1700 m climb that follows and is used by a good proportion of walkers.

The core of the route, and the part that decides whether a walker enjoys it. Above Les Ruinettes the ski-area tracks stop at Cabane Mont Fort and the walking becomes alpine in the proper sense: the Sentier des Chamois is a narrow balcony cut across steep slopes high above the Val de Bagnes, airy, with chains on a few passages and a stretch near Col Termin where a head for heights matters. Beyond Col de Louvie the path effectively stops. For most of the next ten kilometres, over the Grand Désert and Col de Prafleuri, the route is a line of cairns and paint marks across boulder, moraine and old snow, between 2600 m and just under 3000 m, with no shelter and no way off. It is slow ground and the distance means nothing here. Col des Roux drops back into green, and then comes the one flat stretch on the route, an easy shore path with tunnels along the west side of Lac des Dix, before a steep climb to the twin passes above the Cheilon glacier. From the pass down to Arolla the whole character resets: pine forest, glacier views, then a long gentle valley descent past Lac Bleu, through Les Haudères and up a short hillside to La Sage. Three quite different worlds in one section, and the only place on the route where you are more than a day's walk from a road.

Navigation: This is where having no single waymarked trail actually costs something. From Cabane Mont Fort to Cabane de Prafleuri there is little continuous path, and the route is held together by cairns and paint on rock across boulder fields. In cloud or on lying snow that is hard work, and every operator who runs the route commercially says the same thing about not attempting it in bad weather. Two decisions need naming rather than assuming. Out of Cabane Mont Fort, the Sentier des Chamois to Col Termin is the balcony line, narrow and exposed but the more amenable of the two, while the Col de la Chaux variant is higher, rockier and more direct; the Cabane de Louvie variant leaves the balcony to drop to the lake and rejoins over Col de Louvie. Above the Cheilon glacier there are two passes about 300 m apart with different names, different heights and different problems, and the answer has changed recently. The Pas de Chèvres at 2855 m has a rebuilt sequence of ladders and catwalks down its east side and most published descriptions still present it as the normal line, but the Swiss Alpine Club, which owns the hut below it, no longer recommends it because of rockfall and routes walkers over the Col de Riedmatten at 2919 m instead, grading that T3+ and calling it steep and fairly exposed on both sides. Riedmatten has no ladders, a gritty gully and loose rock, so this is a choice between two different hazards rather than an obvious upgrade. The line stored here crosses at the Pas de Chèvres, so anyone following it should read the hut's own route page before committing. Below Arolla, ordinary Swiss yellow signs take over and the navigation problem disappears.

In poor weather: The middle of this section is the one place on the route where the forecast should change the plan rather than the mood. Between Cabane Mont Fort and Cabane de Prafleuri you are above 2600 m for most of fourteen kilometres, off any real path, with nothing to shelter behind. Snow clears from the Grand Désert later than anywhere else on the route, typically not before mid-July, and where it lies it conceals the gaps between boulders. Cloud removes the cairns that are doing the navigating. Afternoon storms are the normal summer rhythm and these cols are the worst possible place to be caught by one. The chained passages on the Sentier des Chamois are unpleasant wet, and the rockfall that has cost the Pas de Chèvres its recommendation is worse after heavy rain and during a thaw. By contrast the Lac des Dix shore and everything below Arolla shrugs off bad weather entirely, which makes them useful ground to save for a poor morning.

Escape options: The most committing section on the route. From the Verbier lifts to Arolla there is no road and no bus, and the shelters are Cabane Mont Fort, Cabane de Louvie on the variant, Cabane de Prafleuri, and Cabane des Dix about 1.2 km off the line above the reservoir. The one real escape in the middle is the Grande Dixence dam, about 2 km from Col des Roux at the north end of the lake: there is a cable car up to the dam crest, a hotel at its foot and a PostBus to Sion, and it is also how walkers who skip the Grand Désert rejoin the route. From Arolla onwards a PostBus runs the length of the Val d'Hérens to Sion, calling at Les Haudères, Evolène and La Sage, so the last twelve kilometres of the section are easy to leave at any point.

Short, and the steepest ground on the route by a wide margin. Out of La Sage the way climbs on hairpin lanes into pasture and then a long unrelenting alp climb past the Buvette du Tsaté to a narrow saddle at 2868 m, the second highest crossing of the trip. The east side is the awkward part, a steep loose drop into the raw grey bowl of the Moiry basin where, surprisingly, there is a road, a car park and a bus. Most of a day's climbing is then done again from scratch: a rising traverse along the lateral moraine of the Moiry glacier, exposed and stony, to a hut perched on the crest with the icefall directly below it. The following morning retraces part of that and swings out along the west shore of Lac de Moiry, a high, bare, wind-scoured traverse well above the water, ending near the dam where the climb to Col de Sorebois begins. Two full climbs in seventeen kilometres with a road in the middle is why this feels harder than any single number suggests.

Navigation: Signed and unambiguous by Swiss standards, with yellow posts reading Cabane de Moiry, Grimentz and Zinal, and white-red-white marking on the Col du Tsaté itself. Two things catch people out. The east side of the col is loose enough that the trodden line shifts from year to year, so follow the paint rather than the most obvious scree. And in the Moiry basin several paths run along the valley at different heights alongside the road, which makes it easy to end up walking tarmac to the dam instead of the shore path above it. Neither is dangerous, but they are different days.

In poor weather: Col du Tsaté is high, narrow and unsheltered, and its loose east side is genuinely slippery wet. The moraine traverse to the cabane is the most wind-exposed short stretch on the route, with nothing between you and the glacier. The west shore of the reservoir is treeless for six kilometres and funnels wind along the water. The saving grace is the road in the middle: a storm here has an answer, which is rare on this route, and a bad afternoon at the barrage ends on a bus.

Escape options: Unusually good for ground this high. The Val de Moiry road runs the length of the reservoir and touches the route twice, at the glacier car park near km 115.6 and at the dam near km 124.8, and both are served by a PostBus down to Grimentz and Zinal that runs in the summer season only, roughly late June to late October. That makes this section abandonable halfway, and plenty of walkers plan around it. Between La Sage and the col there is nothing but the buvette.

Three high crossings, two inhabited places, and a steady slide into remoteness. Col de Sorebois is grassy and almost easy by the standards of this route, but the drop off it is a punishing 1200 m through a ski area into Zinal, the last real village for two days. The Forcletta climb starts badly, a steep wide forest track that does most of its work in the first two kilometres, then relaxes into a long, high, genuinely pleasant alp traverse among grazing cattle before turning rocky for the pass at 2874 m. That pass is the language border: French place names behind, German ahead. Gruben is a hamlet at 1818 m that is inhabited only in summer, with one hotel, and it feels like the most isolated night on the route because it is. The Augstbordpass side is a long climb into boulder country, and the crossing is followed by a shelf traverse across old rockfall at about 2450 m where the ground stays rough for a couple of kilometres. Then the descent towards the Mattertal begins, and it is one of the biggest on the trip.

Navigation: Yellow signposts read Zinal, Gruben and St Niklaus, and following the next settlement name works throughout. Two things need saying. There are two ways from the Val d'Anniviers into the Turtmanntal and they are not interchangeable: the Forcletta starts in Zinal and is the steeper, longer and rockier of the two, while the Meidpass is lower and easier and is reached from the Hotel Weisshorn, which is the point of splitting the stage there. Plan for one and walk the other and your day lengths are wrong. Second, the boulder traverse after the Augstbordpass is the one place in this section where the path is a line of cairns and paint across rock rather than a trodden line, and in mist it needs attention. Lower down, the names to look for at the top of the Mattertal descent are Jungen and St Niklaus.

In poor weather: All three passes are open and unsheltered, and the Forcletta in cloud is a broad rocky saddle where the descent line is not self-evident. The boulder traverse beyond the Augstbordpass is slow and awkward wet. The real weather problem here is structural rather than technical: there is nothing at all between Zinal and Gruben, no hut, no café, no road, so a doubtful forecast makes the decision go or do not go, with no option of turning back halfway to something warm. The long Sorebois descent is ski-area ground and its tracks get greasy, but it is never committing.

Escape options: Thin, and worth planning around. The Zinal to Sorebois gondola runs through the summer, roughly late June to late October, and reaches the route at about km 129.5, so the whole descent can be skipped. Zinal has a year-round PostBus to Sierre via Vissoie. Between Zinal and Gruben there is nothing. Gruben has a summer bus down the Turtmanntal to Oberems, connecting with the Turtmann cable car and the Rhone valley railway, and that is the only way off between the two passes. After Gruben there is again nothing until the far end of the section, where the Jungen cable car drops to St Niklaus and saves the last 800 m of descent.

Three unrelated pieces of walking bolted together. First the end of the Augstbord descent, dropping past the alp at Jungen on tight switchbacks to St Niklaus at about 1120 m, the lowest ground since the Val de Bagnes and a shock to the knees. Then the Mattertal floor, a gently rising walk on lanes and riverside path through Herbriggen with the railway alongside, the least interesting hour of the route and also the most useful, because a train stops every few kilometres. Then everything changes. From above Herbriggen the route climbs about 1100 m of forest in one go, with staircases where the ground steepens and very few places to stop, and comes out onto the Europaweg: a balcony traverse at around 2200 m along the eastern wall of the Mattertal, cut across torrent gullies and rockfall chutes, using catwalks, tunnels and avalanche galleries, with the Matterhorn ahead for most of it. The Charles Kuonen suspension bridge is on this stretch, 494 m of open grating hanging 85 m above the Grabengufer ravine, and it takes about ten minutes to cross. The last third softens into larch shelf at Täschalp and Tufteren before the drop into Zermatt. This is by some distance the most engineered ground on the route, and the least stable.

Navigation: The only part of the route where the printed line should not be trusted without checking, because the Europaweg has been rebuilt and closed repeatedly. The stretch between Springelboden, on the shelf above Randa just beyond the suspension bridge, and Eggenstadel has been shut since storms in late June 2024 destroyed the rockfall defences and crushed a protective gallery. The official detour sends walkers down from Springelboden to Attermenzen in the valley, along it to Täsch, and back up to Täschalp. Zermatt Tourism was still telling walkers to plan for that detour for the 2026 season and the Swiss hiking federation lists the section closed until further notice. Two named lines also share this ground and are not the same walk: the classic Europaweg first stage from Grächen and Gasenried, itself rebuilt in 2021 after earlier rockfall, and the valley approach from St Niklaus through Herbriggen that climbs to the Europahütte from below. The line held here is the valley approach. Say which one you mean when you plan, because they differ by several hours and several hundred metres of climb. Elsewhere the signage is ordinary Swiss yellow with white-red-white on the balcony, and the destination names are Europahütte, Täschalp and Zermatt.

In poor weather: Rockfall is the hazard here and it is weather-driven, so heavy rain and thaw matter more than wind does. The balcony is cut into an unstable hillside and the closures are not theoretical. The suspension bridge is open grating, and Zermatt Tourism advises against crossing it in a thunderstorm, which is worth taking seriously because there is no shelter for a long way either side. Aspect is useful to know: the Europaweg runs along the eastern wall of the valley and faces west, so it stays in shade well into the morning and takes the full afternoon sun, making it a cold start and a hot second half. The forest climb from Herbriggen is sheltered but its steps and roots are slippery wet. The valley leg is weatherproof and has a train.

Escape options: Excellent at both ends, non-existent in the middle. The Jungen cable car drops to St Niklaus and removes the last 800 m of the Augstbord descent. From St Niklaus to Täsch the Matterhorn Gotthard Bahn runs the valley floor with stations at St Niklaus, Herbriggen, Randa and Täsch, so anywhere on the valley leg you are minutes from a train and can ride forward or back at will. Once the forest climb starts there is nothing until the Europahütte. From the hut southwards the only ways off the shelf are the steep paths down to Randa and the descent to Täsch, both around 800 m of loss, and the Täsch one is also the second half of the official closure detour, with a local taxi running Täsch to Täschalp for walkers who would rather not climb back up. At the very end the Sunnegga funicular runs into Zermatt.