Vertical rush

One man went past me wearing what looked like ski boots and I heard a rumour that the fastest finisher had got to the top in 3 mins 53 secs. If so, that's not far short of four steps or 30-odd inches a second.

Still I was pleased to get to the top of Tower 42, the former NatWest Building in the City, for Shelter's Vertical Rush event before breakfast this morning in 8 mins 52 secs. That meant I missed my friend Fiona's offer to double my sponsorship if I did it inside eight minutes, but she cheated by having me shift heavy boxes of magazines around north London to tire me out yesterday.

I've never been that high in London before, except in a plane, and the view from the 42nd-floor champagne bar (minus the champagne, alas) is certainly worth seeing. It's no longer the highest point in the City of London, however, as I discovered looking out of its windows. The adjacent Heron Tower (pictured), still under construction, has a few steel girders going higher still, and when it's finished it will be 100 or so feet taller than Tower 42.

You can sponsor me for doing Vertical Rush and the London Marathon in aid of Shelter here.

Out of the comfort zone

Every so often in life it's good to do things outside your comfort zone. Today I signed up for something that is so far outside mine that I'm announcing it here to make sure that I don't try to sneak out of it later.

I've decided to do this year's Trans-Britain Ultra event in September. It’s a six-day, six-stage ultra race starting near Gretna Green and finishing in Ruthin, Wales, via Cumbia and North Yorkshire, covering 156 miles and five (or is it six?) peaks along the way.

I feel exhausted just typing the details. Oh, and did I mention that you carry all your gear (apart from a tent) on your back?

I’ll be doing it to raise money for a charity, Teach Africa, which works with teenage girls from the slums of Nairobi. The race organiser, Steve Adams, set it up in 2005 and I have a personal interest in supporting it because I lived in east Africa for a time during 2002-2003.

I also have a personal interest in another charity that I’m doing a double challenge for over the next couple of months. I was homeless for a time when I was younger and became very actively involved in squatting and other housing campaigns. I went on to work in short-life housing for a few years and edited the housing charity Shelter’s magazine Roof for a short time at the beginning of my career as a journalist and writer.

This Thursday (25 February) I'm doing the first leg of a double sponsorship challenge for Shelter. Vertical Rush involves running up 42 floors, 900-odd stairs, to the top of the highest building in the City of London. Two months later I’m using my oh-so-precious London Marathon place, held over from last year when I had to pull out due to injury, as the second leg of the challenge.

You can support my Shelter fundraising here. More about Teach Africa later.