It's dubbed the "Savage Mountain" for good reason.
Pakistan's K2 claims one life for every four successful ascents.
It stands at 8611 metres.
It boasts just a third the oxygen of sea-level.
It's claimed more than 80 climbers.
These risks weren't unknown to former Hastings mountaineer Marty Schmidt. One of the globe's acclaimed "peak freaks" is now presumed dead alongside his 25-year-old son and climbing protege, Denali, following an avalanche on K2 sometime over the weekend.
I was lucky enough to interview Marty, then aged 45, in September 2005.
Looking back at the clipping and photo of our interview, he was wearing a T-shirt with the words: "Geared for the vertical world".