3 - 4
FATMAP difficulty grade
Starting from Courmayeur you can reach Punta Helbronner with Skyway Gondola.
Once there, ski over the Col del Flabeaux and head towards the Tour Ronde.
I choose to climb the "Normal Route" on the East Face.
The descent is super exposed and very serious.
Halfway down the north face be ready for a 90m abseiling (60m ropes for 2 abseils are suggested). At the end of the line you can skin back to Punta Hlebronner of ski the Vallée Blanche down to Chamonix. Best conditions around March-May.
I've skied it in December!