Another popular route (and the one recommended by Wainwright) is to follow Longside Edge, first ascending Ullock Pike, Longside and Carl Side before making the steep climb up from Carlside Col. Also from the north, a somewhat tougher alternative is to walk up Buzzard Knott between Southerndale and Barkbethdale: after crossing to the southern edge of the shoulder above Randel Crag ascend due east to the summit. Rather easier than either of these is the compass-walk due south from Cock Up (505m); reversing this route provides a safe descent, especially in bad weather. Scramblers may prefer simply to walk up Southerndale and climb Longside via a distinctive crevice seen easily from Skiddaw summit.