Botham's tireless city crusade

The Telegraph's Robert Philip joins Ian Botham on a ten-mile leg of his latest fundraising walk in aid of Leukaemia Research and the Teenage Cancer Trust.

Beefy, I should explain, walks faster than most joggers and so after setting off at his right shoulder below the castle ramparts in Edinburgh's Princes Street on a pleasantly nippy autumn morning ... I frequently had to rest my aching limbs slumped in the back seat of the support car. There can never be any such respite for Saint Ian. "When I started these walks in 1985, there was a 20 per cent chance of people surviving leukaemia. Now the survival rate is 80 per cent and I won't stop walking until it's 100 per cent."