Walk the Line is a series of caches linking Lowca and High Harrington along the cycleway, which follows the route of the old railway. Locals describe the walk/cycle as "goin' down t'line'. The route is tarmaced and suitable for walking, cycling, horses and pushchairs. It is a bit narrow in places, and can get busy at weekends, especially in good weather. The railway is part of the former Whitehaven, Cleator and Egremont railway, and closed in 1973. It used to carry coal and bricks (from the Lowca pit and Micklam brick works)..