Ultra Challenge for New Hope

In September (restrictions permitting) one of our Managers James is attempting to do an Ultra Challenge to raise some funds for New Hope. This challenge involves walking 100km (62 miles) from Putney in West London, to Henley-on-Thames - the equivalent of walking from Stratford to Bristol, or Warwick to Peterborough!
This is the first time he has attempted anything like this for a number of years and would appreciate anything you can give to help boost his motivation, which you can do by using this link: