In an attempt to organise myself ready for the walk, I've spent this afternoon turning the big map on my wall into a giant clock.
It's now divided up into sections of 3.1 miles - which is about the average distance I need to do in an hour to get me round the whole thing in 24 hours. It turned out that the route I've plotted is actually 74.56 miles.
From this I can now start letting my lovely volunteers know the approximate time and place that they will be able to find me. If you've volunteered, I'll be in touch in the next day or so to check in with you about this.
All of this should have been done long ago, but I'm pleased that it so far seems to be falling into place fairly simply.
Funny, I thought the walking would be the hardest part.