Western Ribs Rock Climbing

If you do as I did, park at a small lot in the crook of a tight switchback of roads just north of the castle ruins. This is obviously a hiker's starting point, as there is signage with trail maps and an overview of the entire region. Walk south, glancing desperately for escape routes should a vehicle come your way as you do so. One of the ubiquitous trail posts guides you away from most traffic onto first a dirt farm road, then left off that to begin wandering uphill through the woods. The trail is blazed with purple 'Vital' markers, which I believe stands for 'rough trail' . This is the first substantial rock you will come to, left off the main trail 5m or so. Note the spot I picked on the routefinder map may not be quite right.
It is also possible to walk down the trail from the upper access (which I believe is the normal and best way to access the cliffs generally), just by continuing downward past the main ridgeline.