If standing at the beach facing the Mediterranean after walking the trail from Olympos turn right. Walk about 100 meters with the sea on your left until you see a trail (or a couple trails) heading up the hill toward the castle ruins. You want to head uphill and to your left traversing above the castle ruins. If you end up in the ruins just keep heading up. Avoid feeling like you have to bushwhack through the forest. There is a well defined trail leading up over the ruins and around the corner to a strikingly steep wall that was previously hidden. The walk takes about 10 or 15 minutes from the beach.