I am going to start in Scotland and finish in Cornwall because I live in Sussex and it will be easier to travel a fresh horse the whole length of the country and we will then finish closest to home. I have a rough idea of the route I want to take; starting at John O'Groats, dropping down the east coast of Scotland, alongside Loch Ness and Loch Lochy to the west coast, down to Carlisle, shadowing the Pennine Way, along the Pennine Bridleway to Derby and straight down from there. I want to take the most rural route possible, even if it isn't the most direct. I'd like to use as many bridleways as possible.
The problem is that I cant carry too many maps with me and the larger scale atlas maps don't show bridleways.