I'm not sure either- it sure is beautiful down there.... I can see why it would be a huge bonus for the locals though, it's a huge drag going inland to Rhiw and the other side of the road closure to Porth Neigwl, but it is a nice big (for a B) road down to Aberdaron.
Which reminds me: is there any climbing on the 'fort' by Rhiw radar station?