20m. Turned out better than expected. Climbs the open groove R of the arete with the borehole. There are good moves in the upper half. Start on the R arete of the groove. Move up towards the next corner on the R then veer back L round the arete to gain the main groove via a flake crack. Climb the groove until forced R via difficult moves past a prominent flat hold. Move back L to finish.
Colin Struthers, Harold Walmsley 27/Jul/2010