Footpaths, Walks & Cycle Trails Circular Walks and Cycle TrailsFootpathsHarpenden to St Albans via Redbournbury Watermill Walk – 12 MilesHarpenden Walking Trails – Many WalksNickey Line Walk 1 – Rothamsted, Harpenden – 2.8 milesWalking around HarpendenWalking Britain