Tasman Peninsular - Arthurs Peak track

The thread on Fortescue reminded me that on recent trips I've noticed a sign indicating a track to Arthur's Peak leaving the Cape Pillar track about 2.5Km south of Fortescue Bay... Google maps indicates that it exists, but looking at the satellite photos there are no signs of a track and I don't think it's marked on the current Tasmaps map... Has anyone walked in this area recently? Is there a reasonably easy-to-follow track, or should it be considered off-track?