Today’s City lawyers seem to like nothing more than a bit of charity work – particularly if it involves a fun task in an exotic location. But with so many people growing moustaches, jumping out of planes and rowing across oceans to raise funds – often all at once – bog-standard marathon-running seems a little passe these days.

So hats off to Jones Day for coming up with an event that sounds suitably torturous to win the hearts, minds and money of even the most
prudent of clients.