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Les cols du Grand-St-Bernard

· 3 reviews · Hikes · Valais
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  • Lac de Fenêtre
    Lac de Fenêtre
    Photo: Yves Garneau, Valais/Wallis Promotion - Yves Garneau
m 2900 2800 2700 2600 2500 2400 2300 10 8 6 4 2 km Petite Chenalette Lac de Fenêtre
Spectacular high-altitude hike straddling the Swiss/Italian border: three scenic cols, an idyllic cluster of alpine lakes and the Great St Bernard Pass with its ancient hospice and famous kennels.
Distance 11.7 km
4:45 h
950 m
950 m
2,747 m
2,350 m

The Great St Bernard Pass has been an important alpine crossing since Roman times, a major link between northern and southern Europe. The historic pass road also gives access to thrilling hiking terrain. 

This trail starting at the pass is a high-altitude loop featuring three climbs to mountain cols, each revealing different views. A little past midway round the loop, the Lacs de Fenêtre are three idyllic mountain lakes on a flower-filled plateau at about 2,500 m. The view of Mont Blanc and its neighbouring snow-capped peaks is sublime.

Hikers should allow time to explore the pass area and its historical hospice, founded in the 11th century to offer shelter to travellers and pilgrims. Highlights include a fine baroque church and its glittering treasury. A small museum explores the local fauna and flora, geology and climate, and traces the pass’s eventful history – including Napoleon’s crossing in 1800 with an army of 40,000.

Throughout the Middle Ages, pilgrims crossed the pass on their way to Rome – following an itinerary first described by Sigeric the Serious, Archbishop of Canterbury, who passed this way at the end of the 10th century. Today, the Via Francigena once again offers hikers a historical trail all the way from Canterbury to Rome – which our alpine loop follows for its final climb up to the pass.

The stars of the hospice, however, are the St Bernard dogs, kept by monks here for centuries. Today, the breeding kennel is in Martigny, run by the Fondation Barry, but every year some of the dogs return to spend the summer up at the pass – now in new kennels, inaugurated in 2017. Visitors can accompany dogs on guided walks in the surrounding mountains.

Admission to the kennels and museum is free with the PASS Saint-Bernard – which also covers a wide variety of other attractions in the region plus public transport.



  • Dramatic scenery – one pass, three cols, three mountain lakes, spectacular views
  • Historic hospice, church and museum
  • St Bernard dog kennels

Author’s recommendation

The PASS Saint-Bernard includes admission to the kennels and museum at the hospice, along with public transport in the Pays du St-Bernard region.
Profile picture of Corrado Wyssen
Corrado Wyssen
Update: January 12, 2021
Highest point
Les Luis Morteau, 2,747 m
Lowest point
Baou, 2,350 m
Best time of year

Track types

Show elevation profile

Safety information

Use of the trails and the information on this website is at hikers’ own risk. Local conditions may entail changes to routes. Valais/Wallis Promotion accepts no liability for the accuracy and completeness of information on this website.


For all hikes:

  • Bring a map. Download full description of this route including large-scale map by clicking on “Print” icon, top right of this page.
  • Use marked trails only, and observe all signposting – for your own safety, to safeguard grazing animals and to avoid disturbing wildlife.
  • Close gates after passing through.
  • Please be considerate to other trail users, and to the plants and animals.
  • Do not leave any waste in nature.  

For mountain hikes:

  • Take extra care protecting yourself from the sun at altitude. UV radiation can be exceptionally strong, even in cloudy weather.
  • Plan hike carefully: take into consideration fitness level of each participant, weather forecast and season.
  • Weather conditions can change quickly in the mountains, without warning. Appropriate clothing is therefore essential, along with adequate supplies of food and water. In uncertain weather, turn back in good time. 

For high-altitude hikes:

  • Inform others of the route you plan to take. Whenever possible, avoid going alone.
  • Do not venture onto glaciers without a mountain guide.
  • Take note of the warning signs that point out the constant danger in river beds and along watercourses below dams and reservoirs: water levels may rise rapidly without warning.

Tips and hints

View this tour on SwitzerlandMobility: 

More information about the destination: 


Great St Bernard Pass (2,468 m)
2'579'210E 1'079'734N
45.868913, 7.170946
45°52'08.1"N 7°10'15.4"E
32T 358038 5081109


Great St Bernard Pass

Turn-by-turn directions

From the summit of the Great St Bernard Pass, follow the road for 100 m on the Swiss side before taking the path on the left to climb steadily up to the Col des Chevaux (2,714 m). The path drops down to the bottom of the valley beyond, the Combe de Drône, before beginning a second ascent to the Col du Bastillon (2,754m). On the far side, the trail descends to the shore of the first of the three Lacs de Fenêtre before threading a course between the second two. A third ascent leads up to the Fenêtre de Ferret (2,694 m), which marks the border between Switzerland and Italy. The path then zig-zags down to the pass road before taking a separate route up to the Swiss border, the pass and hospice – the fourth and final ascent of the hike.


all notes on protected areas

Public transport

Train to Martigny; change on to St-Bernard Express, direction Le Châble. Change platform at Sembrancher for train to Orsières. Change on to postal bus for Great St Bernard Pass.

Find full timetable information at

Getting there

A9 motorway, exit 22 (Gd St-Bernard). Follow signs for Grand St-Bernard all the way to the pass.


Parking available at the pass.


2'579'210E 1'079'734N
45.868913, 7.170946
45°52'08.1"N 7°10'15.4"E
32T 358038 5081109
Arrival by train, car, foot or bike

Book recommendation by the author

The tourist office in Orsières has got brochures and information material about hiking in the region.

Author’s map recommendations

SwissTopo maps 1:25’000: 1365 Gd St-Bernard


We recommend: 

  • good footwear
  • clothing suitable for the weather: always carry a waterproof jacket
  • hat or cap
  • sunscreen
  • bottle for water
  • picnic
  • camera
  • binoculars (optional)
  • hiking poles (optional)
  • printout of this hike (click “Print” icon, to download) 

 For certain walks:

  •  Swimwear

Questions and answers

Question from Malwina Griffin  · May 24, 2020 · Community
Is it a very steep hike that requires a lot of good technique? Thank you
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Answered by Ulrich Dochow  · May 26, 2020 · Community
Its Long, not very difficult


Tobias Schwarzenberger 
June 24, 2021 · Community
Top Tour gemacht ende Juli 😊🤙🏽
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Réka Vasszi
October 15, 2019 · Community
Amazing tour, especially in the autumn months. Take warm clothes, hat and scarf as it can be windy on the top.
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When did you do this route? October 12, 2019

Photos from others

11.7 km
4:45 h
950 m
950 m
Highest point
2,747 m
Lowest point
2,350 m
Circular route Scenic Refreshment stops available Cultural/historical interest Geological highlights Botanical highlights Flora and fauna


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