From parking at (N44.6712 E6.6195) hike 200 meters roughly S on wide well-beaten trail up to the switchback in the asphalt road which goes up to visit the fortress way up on top of this big hunk of rock. Here turn sharp Left and hike 90 meters NE up on the well-beaten trail. At (N44.6701 E6.6201), leave the main trail and go Right onto steep narrow trail, next 100 meters first rising NE, then sharp turn right SSW steep. At junction go Left 50-70 meters up E (passing under steep bolted routes) to reach the slab at (N44.6700 E6.6212).
For more information on the El Pouding gauche climbing sector: http://mountainproject.com/area/114536695