I was involved in an accident that needed a helicopter out there a couple of years ago and the one thing everybody said afterwards is "I wouldn't have known what number to call for rescue" - it's 112.
As I understand it, the approach is about as straightforward as this stuff gets, esp from Courmayeur / the Helbronner lift.
Safety/training wise, when I was younger I yomped about all over the shop unroped and never fell in a hole - you'd almost certainly be fine doing that on this approach. I'm more cautious now (just because I'm older and more of a coward) and tend rope up where possible/practical on wet glaciers as a rule. Almost all Europeans seem to, Brits mostly don't unless they're punters. I don't know why.
A group of my sister's city friends had a week skiing in Cham and did the Vallee Blanche with a guide. The next day one of them wanted to do it again, but the others didn't fancy it without a guide - so he went on his own. Inevitably, halfway down with no one else in view he went down a crevasse. Although tightly wedged he just managed to free one arm and get how mobile out, which miraculously had one bar. He didn't know the emergency number either, so phoned his wife in London...
Thanks for the trip report Jonas. I wasn’t sure the route was a must or not. Now I’m sure it is
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