"Tower running is harder than it looks but the advantage is that you get an amazing view as a reward when you reach the top!"
"I'm not an athlete and can't see myself ever having the time to train to complete a challenge like a marathon. But I wanted to get involved in some kind of challenge and the Gherkin seemed much more doable.
"The first time around I did very little training other than walking up escalators whenever I used the tube! My son Charlie (who was 10 at the time) skipped up the stairs, arriving at the top looking fresh as a daisy whereas I relied heavily on his encouragement to keep going to the top.
"A year later and my fitness was a bit better, having started running regularly. I wanted to have another go to beat my time from the previous year and of course to raise money for Childline."