Chris Moon is welcomed by supporters at Lord's cricket ground

Chris Moon, 42, was welcomed by 300 supporters when he arrived at Lord's cricket ground, London, on Tuesday.

Mr Moon, from Basingstoke, Hampshire, hopes his One Walk challenge will raise �1m for the Leonard Cheshire charity.

He will be passing through Newbury and Hungerford on Wednesday and will finish at Land's End on 29 June.

A spokesman for the Leonard Cheshire charity, which provides services for disabled people, said Mr Moon was walking an average of about 18 hours a day since leaving John O'Groats on 5 June.

Toughest race

"Obviously it is quite a big endurance test. Aside from the general fatigue, lots of sores and blisters, and problems with his prosthetic leg, he suffered a severe viral infection when he was up north," the spokesman said.

"But he has recovered now, so he is bearing up and he is on schedule."

The former soldier was working for a landmine clearance company in Mozambique in 1995 when he lost his right arm and leg.

Less than a year after leaving hospital he completed the London Marathon, and in 1997 completed the 250-km Great Sahara Run - described as the toughest foot race on earth.