The jewel in the crown of Courmayeur is the Skyway Monte Bianco cable car but it’s South facing so needs a decent layer of fresh on top of what will now be a transformed surface layer. And you want some local knowledge on the access which I believe has got trickier as the glacier has receded. From the top you have the standard route back down the glacier past the mid stations or the route down the Vallée Noir to Cham and get the bus back.
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