Aiguille de Bionnassay, Normal Route 2-day ascent

Join Tomas, expert IFMGA certified guide, on this great Aiguille de Bionnassay ascent, to the west of Mont Blanc. Discover its unique narrow crest peak!




Trip Duration

2 days

Mountain Range


People per Guide

1 person

Trip Level


Offer Period

Jun, Jul, Aug, Sep

Type of Trip

Not specified


To the west of the majestic Mont Blanc, there are other outstanding peaks, which are sometimes neglected. On this program, I want to take you on a 2-day ascent to the Aiguille de Bionnassay. This is a challenging, fantastic climb on ice and rock, and one that you will never forget.

The Aiguille de Bionnassay has inviting fine ice and snow routes. Its peak (4,304 m) is steep and its long north face drops 4000 feet to the Glacier de Bionnassay.

In terms of difficulty, the rock climb is quite accessible, with a mid-class 5 difficulty level (French 4b), although ascents are often during the cold of early dawn. This means that it requires crampons for the snowy rock.

One of the greatest challenges of this ascent is its narrow crest, which requires a careful use of crampons, and a lot of concentration. Although the technical difficulty is not too high, the exposure and the narrow crest and thin snow ridges require confidence.

Some of the spots included in this itinerary are:

  • the Dôme de Goûter
  • the Dômes de Miage
  • the Nid d’Aigle

Due to its Advanced level, I will only take 1 climber on this program.

In terms of weather conditions, it is not advised to climb this peak when conditions are too icy. You will need glacier safety gear for this tour.

Interested in this Aiguille de Bionnassay, Normal Route ascent? Request your booking! Have a look at further 4000er programs I guide, like the Les Droites Normal Route ascent, and the Dent du Geant, Normal Route, 1-day ascent.


Price per person

1 Person
1200 EUR


Price includes

  • Guiding fee


What happens if I need to cancel the trip?
If you decide to cancel, you’ll get a 100% refund (minus fees) if the cancellation is notified up to 60 days before the start of the tour, a 75% refund (minus fees) if you cancel between 59 and 30 days before the start of the tour, and a 50% refund if you cancel between 29 and 21 days before the start of the tour. If you cancel less than 21 days before the first day of the tour, you won’t receive a refund.Take into account, however, that if accommodation, flights or transfers were included in the trip you booked, then a different policy may apply as the guide will be bound by the provider’s cancellation policy.

What happens if the guide cancels the trip because of bad weather/unsuitable conditions?
If bad weather or unsuitable conditions force the guide to cancel the trip, he or she will: a) propose a similar activity at a different place where conditions are better, or b) propose to postpone the activity until a later date, or c) cancel. If you refuse option a), our cancellation policy will apply. Please note, however, that the call to cancel a trip due to bad weather can only be made by the guide (not the client).

What happens if the guide doesn’t show up or cancels for personal reasons?
If the guide cancels for reason of injury or other, you will get a 100% refund on your trip.


Other details

Skill level required
Fitness level required
Meeting point
Chamonix, France

About the Guide


Hello! I was born in Patagonia, Argentina, and started practicing mountaineering from a very young age. Today I live in the mecca of alpinism, Chamonix, France. I work as a full time mountain guide here in the Alps, in Patagonia and in any place I get the chance to go to.

Whether it is rock climbing in the sun, or ice and mixed routes in the cold north faces in the Alps, I do everything with passion. Glacier travels, icefalls climbing, freeride, ski touring... Luckily the mountain gives us many choices.

I invite you to join me in any of my trips and activities!

FROM 1200 EUR per person


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