Taking place from 30 September-2 October the walk will stretch from Ilkley in the Yorkshire Dales National Park to the shores of Windermere in the Lake District.
Created after the death of freelance logisitcs manager Howard Kerr, the event that has been running for three years, has already attracted the likes Simon Burton, Laura Moody, Sam Wilson and Lee Farrant to participate this year.
Managing director of Blondefish Laura Moody said: "I loved the walk so much last year, I'm back again. When I say I loved it, I must add that walking 100 miles was the hardest thing I had ever done. Harder than the Three Peaks Challenge, giving birth to two children and breaking my collar bone all at once."
The event has helped raise more than £180,000 and has funded a PHD Studentship Award for a researcher at Barts Hospital's Institute of Cancer.
Gallowglass managing director and Howard's Walk creator Nick Grecian added: "Once again Land Rover are generously providing support vehicles for the walk, and we’re really hoping for additional sponsorship. We’ve put together a number of £300 packages, to cover necessities ranging from medical support to cake, via transport and physiotherapy. "
For more details on taking part in the event
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