That is an interesting point about the water. I understood that it was used (amongst others things) by the warrior tribes for troop movements and meetings and it would seem natural that they would stay on high ground for safety and visability. Just a thought any way.
We shall be starting from Ivinghoe and doing the lot in 5/6 days at a guess. We'll do some test walks first to see the sort of pace we can manage fully loaded.
D