11 climbers appeared to have died on the world's second highest mountain K2.

It was one of the deadliest days in mountaineering history.

Rock falls, avalanches.

Huge pieces of ice.

All are big enough to kill you.

He just flew out into Devoid, and he was gone.

How did it all go so wrong?

And is it really worth risking death to feel alive? Why would

somebody pay to go to a place called the death zone on vacation? Extreme, peak danger. With me,

Natalia Melman Petrazella. Listen to the full series now, first on BBC Sounds. This is a podcast

download from the BBC.

It's Ramblings on Radio 4 with me, Claire Boulding.

Hello and welcome to a brand new series.

Over the course of the next six weeks, we're going to be focusing on communities.

And I want to start with a bit

of a confession. When I first moved from the country where I'd grown up to London, I found it

the loneliest place on earth. I really missed being outdoors and walking and seeing great green

fields and trees. And although there were these millions of people around me,

I didn't know any of them.

And it can be, for anybody living in a city,

quite a frightening experience.

So today I've actually come to a massive area called Hampstead Heath,

...