Park at what used to be the Three Horseshoes Pub at the top of Mud Lane by Harpenden Golf Course. There is parking here.
(S/E) Cross the golf course and emerge on to Harpenden Road.
(1) Cross the road and go right for a couple of hundred yards and then take the first left on Beesonend Lane.
Continue along Beesonend Lane all the way and down to the river Ver.
(2) At the Ver, turn left and follow the path (Hertfordshire Way, Ver Valley Walk) past the water treatment plant to a second mill house, millpond and stud farm. Continue past houses on the left to Redbourn Road.
(3) Turn left and carry on along the roadside until a path is seen going uphill on the left. There is no signpost for this path. Go up the path to the right of the woods and at the next crossing, where the path levels out, keep left on Hertfordshire Way. Follow this well used path through Ladies Grove Woods to join Childwick Green which takes you past Chilwickbury Manor. At Childwickbury Green you can make a detour to the right to appreciate the Rhododendrons (if they're in flower) and continue to Harpenden Road.
(4) Turn left along Harpenden Road for a couple of hundred yards and then cross this road to take a well hidden path just before a layby. Follow this path to Ayres End Lane. Go right and then immediately left and follow the path back to The Three Horseshoes, which will be on your right. (S/E)