A few details:
(8) If you wish to avoid the detour through the woods, continue along the towpath rather than taking the path that climbs gently to the right. There are plenty of fallen branches and trees between (8) and (9).
(10) The OSM (OpenStreetMap) base map does not show the path that climbs from the towpath towards the top of the embankment. It is clearly there on the ground… it is a simple, fairly little-used track.
(14) After the turnstile, veer slightly to the left and look out for the next turnstile (15) situated at the corner of the barn on the other side of the meadow.