Four weeks after "retiring", Ken Ash is walking the length of New Zealand to raise money for the Neurological Foundation.
Mr Ash retired from his job as a tutor at Open Polytechnic NZ at 76 and is in the process of walking the 3002km long Te Araroa trail from Cape Reinga to Bluff.
While raising awareness of neurological disorders through his efforts, he also wants to dismiss the stereotype that older people are not fit enough or don't have the capability of completing such a goal.
Mr Ash, from Wellington, started his journey from the top of the North Island to the bottom of the South Island on November 5.
He is 18 days into his walk and said that he has "sore feet" and is likely to go through three pairs of sneakers over his long journey - one pair every 1000km - but that there is "no problem with the distance".