The course 3 x routes available epic 35 miles standard 25 miles short 15 miles under 16rsquos ride for free when accompanied by a paying adult heading out from dorking yoursquoll be straight out onto the north downs way as you head out under the shadow of box hill and surrounding looming road climbs before venturing out into the surrey countryside yoursquoll follow neat trails and hillside bridleways as you head out towards abinger common then through woodland to holmbury st mary an