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Mountaineering Aiguille de Bionnassay
Physical Level 1: For individuals who engage in occasional physical activities, positive elevation gain of up to 300m.
Physical Level 2: For individuals who engage in regular physical activities, positive elevation gain of up to 600m or routes above 3500m.
Physical Level 3: For individuals who engage in regular endurance activities, positive elevation gain of up to 900m or routes above 4000m.
Physical Level 4: For individuals who engage in regular endurance activities, positive elevation gain of up to 1300m.
Physical Level 5: For individuals who engage in intensive endurance activities, positive elevation gain exceeding 1300m.
Technical Level 1: For regular hikers wishing to discover mountaineering. The route is not very steep and is well-marked, or the activity may also take place in beginner-friendly areas.
Technical Level 2: For experienced hikers wishing to discover mountaineering. The route includes short, steep sections and may involve scree or rocky ridges, requiring surefootedness.
Technical Level 3: For occasional mountaineers (2 to 5 recent outings). The route includes steep sections requiring prior climbing experience at a French grade 3c level and/or mastery of crampons and ice axe use.
Technical Level 4: For regular mountaineers (5 to 10 recent outings). The route requires climbing at a French grade 4c level and mastery of mountaineering techniques, including the use of crampons and an ice axe, as well as basic roping and belaying techniques.
Technical Level 5: For experienced mountaineers (more than 10 recent outings). The route requires climbing above a French grade 4c level and mastery of mountaineering techniques, including the use of crampons and ice axes for ice climbing, as well as advanced roping and belaying techniques.
Aiguille de Bionnassay - A great alpine ridge
The Aiguille de Bionnassay (4,052 m) is usually climbed from the Durier hut (3,354 m), a remote and characterful refuge with an atmosphere similar to the Charpoua hut.
From the hut, the route follows a snow saddle, early in the season, before reaching the base of the rocky summit section. This final section, around 200 metres high, is climbed via an intelligent line following the easiest ground (3b, with a short step of 4a).
One of the finest snow ridges in the Alps
From the summit, the traverse continues towards the Dôme du Goûter (4,304 m) via the col de Bionnassay (3,884 m) and the Piton des Italiens (4,002 m). This section follows a sharp and highly exposed snow ridge, which requires excellent cramponing technique and the ability to move confidently in exposed terrain. In return, it offers a unique experience combining elegance of movement, sustained effort and immersion in one of the most spectacular high-mountain environments in the Alps.
The Royal Traverse
The Miage - Bionnassay - Mont Blanc traverse, often referred to as the “Royal Traverse”, is one of the most complete and aesthetic itineraries in the Mont Blanc massif. Usually completed over 3 days, it links snow ridges, rocky sections and glaciers in a continuous high-altitude journey. When conditions allow, the descent via the Three Monts route provides a natural extension of this exceptional alpine traverse, leading all the way to the Aiguille du Midi.
📩 Booking is available by email or phone only. Our team is here to help you choose the route that suits you best. Prices vary depending on difficulty and duration; full details are available in our dedicated brochure.
Private bookings are the best way to enjoy a fully tailored experience with a guide. You will be on your own or in a small group, and your guide will adapt the itinerary to your preferences and pace. It is the ideal option for maximum flexibility and comfort.
Dates for private bookings
Depending on conditions and availability
Meeting point & logistics for private bookings
The program is defined with our team
Guiding ratios for private bookings
- Traverse: 1 people
- Royal traverse: 1 people
- Multi-pitch routes: 1-2 people
Prices for private bookings
- Traverse: €1635
- Royal traverse: from €2100
✅ Included
- Mountain guiding services
❌ Not included
- Personal equipment
- Ski lift passes
- Mountain hut accommodation (including the guide’s accommodation)
Find in this section all the information about the basic equipment required for routes on the Aiguille de Bionnassay
⚠️ The equipment is discussed with your guide depending on the conditions
Our Rental Partners
You can rent your equipment from our partner shops and benefit from special prices: Millet (excluding crampons, ice axes and helmets), Sanglard Sports, Ravanel & Co, and Concept Pro Shop
Our Equipment Partners
Millet, Dynastar, Julbo, Grivel & Monnet
Calculate your carbon footprint
Discover the carbon emissions of this activity and add your trip to the meeting point.
CO2 emitted per person for the activity: 50 kg. Learn out more about the footprint calculation of this activity
CO2 emitted per person for the activity: 50 kg. Learn out more about the footprint calculation of this activity
CO2 emitted per person for this activity & journey(s) = 0 kgIn order to limit global warming to +2°C by 2100, the COP-21 agreement stipulates that each human should emit no more than 2t of CO2 per year. According to the French Ministry of Ecology, today European citizens emit an average of 11t per year, and American citizens emit an average of 21t annually., or 5€The price for a ton of CO2 is currently 100€ in the European Union to offset.
Find out more about our zero impact strategy.
