Again the 3 Amigos set-off at a pace (others described as "tanked-it"!!) towards the first water-stop which was at the Somme memorial, 20 miles.
Well, 23 miles after the "detour" - We missed a turn.
Not sure how, big bloody orange arrow nailed to a lamp-post!! however we weren't the only ones, retracing our route about 25 guys did the same.
Eventually pulled in up the hill to the water stop, and visited the memorial.