22m. Yet another excellent sustained route, abseil from the concrete strainer post down the back north corner of the inlet to a big tidal ledge (45m rope and swing required or gear to keep in). Traverse left off the ledge and either hand traverse the low break or step up and use slopers to gain a groove leading to the left end of the roof. Climb the groove and its left arête up over the roof in to a shallow groove. Continue over a small roof above and finish up the crack and lay back flake.