This is a popular ski touring route which is generally considered to be severe. It's very remote, it features high exposure (e3) and is typically done between March and April. From a low point of 1.7 km to the maximum altitude of 3.6 km, the route covers 23 km, 2021 vertical metres of ascent and 2022 vertical metres of descent. It's graded 4.1 and Labande grade 5. You'll need rope, skins, ice axe, crampons and glacier kit to complete it safely.