Generic Touring Thread

I'm assuming there's a full off-road route across the whole lot

There is.
Change map on RWGPS to OSM cycle and you'll see the orange line.

I was constrained by time at hand and wanting to do too much. Could have not managed it all offroad in 9d, some stretches are proper BTT, I remember one morning I averaged 10kph for 5h! (Surly Stragler with 36mm slicks)