SIR - May I through the T&A congratulate David Slater for his 10k a day challenge.

About four years ago I had trouble walking unaided and always said that I would like to do a 5k walk, which I achieved about three weeks ago. And last Thursday and Friday I completed a 10k walk, so I know how hard it is, but to keep it up for a year is amazing.

Well done David.

Paul Charman, Beacon Road, Wibsey