START (GR 518369) on B1383 at green paint mark at Gully cover 20 yds S. of bend sign which is N. of Bus lay-by opposite road to Saffron Walden & N. of fighting Cocks PH. Approx 1.5miles N. of Newport. Proceed north through Littlebury and Gt. Chesterford to turn (5.1m) at roundabout at junction of B1383/A1301. Retrace along B1383 through Great Chesterford and Littlebury to roundabout at junction with B1052, Turn, (3rd exit) and pass start point, repeat circuit and continue on third to FINISH (GR 518369) at Green paint mark at gully cover just S of white direction board approx 50yds S of start point.