Moderate up some big holds on the leftmost side of the left wall.
Left-most climb on the 'Left Wall' area of Great Head.
From below, it's just right of a short crack-looking thing, and about 10' left of where the huge roof starts and the ground drops down a bit.
From above, there's a large ledge/area dropped slightly below the top of the cliff, with a few spread-out bolts. a few TRs can be set from here, Barnacle is left of the left-most bolt (looking from the Ocean towards bolts). It's probably farther left then you think from above.
TR - gear or some far-apart/away bolts and a decent length of static line or webbing.
Instead of using 2 bolts, we used the left-most bolt & some gear in a crack to the left of that, and about 10' of webbing on both the gear and the bolt to get the anchor-point over the edge.