© The Automobile Association 2008. © Crown Copyright Licence number 100021153
1 From the Amenbury Lane car park, go right, into Hay Lane. Past the Harpenden Leisure Centre enter the park and follow the path to a lime avenue. Turn right and continue along this lime avenue to a T-junction.
2 Turn right here into another lime avenue. After four trees go right, through a gate at a bridleway sign, and head diagonally right to a gate in the far corner.
3 Look left for views of Rothamsted Park's clusters of chimneys and gables before turning right to join a lane. When the road turns right towards Rothamsted Experimental Farm go left on a tarmac track and then right at a bridleway sign, the path now a grassy margin. Continue across a lane on to a path between arable fields and follow it as it curves left down to Knott Wood. Walk alongside it and, out of the field, turn left on to the Nicky Line path.
4 The path follows the course of this former railway line to the Harpenden Road. Cross the road, skirt to the left of the roundabout and go up the right-hand side of the A5183 - there is a Nicky Line sign. The path regains the trackbed. Just past the gates to a gypsy site go left over a stile to cross the A5183.
5 Over the main road climb some steps to a stile. Continue across an arable field, with electricity poles to your left. Go through a hedge gap and straight on, then bear right. The path goes into an overgrown green lane, shortly with a golf course to your left. Pass behind the 8th tee and turn left along the golf course side of the hedge. Past the ninth tee turn right, the path winding through scrub. Beyond this cross a stile and some pasture, bypassing Hammonds End Farm.
6 Turn left along the lane then right on to Redbourn Lane. At the White Horse pub go left by Flowton Green, then turn right on to a footpath to the left of Flowton Grove. Beyond a thatched cottage you reach the road along the west side of Harpenden Common.
7 Institute of Arable Crop Research
West Common
Harpenden
High Street
Leyton Green
Amenbury Road