This challenge is inspired by my father's love of the North West Highlands.
From Fort William to Cape Wrath - it's about 400km (give or take a few km)
I've got nine days to do it, starting on Friday 28 April.
That means no bimbling on my part.
I'm raising money for the Alzheimer's Society because, through work, I see the impact it has on people's lives.
You can follow my progress here: http://live.opentracking.co.uk/smithcw17/?n=1