Why not circumnavigate the sanctuary? This probably isn't such a good idea for your first walk, but the eastern half is
definitely the quickest way to the Fairfax loop.
The safest starting point is at the top of Darley Road, going along Bluefish Road. In the photo, go just to the left of the power pole, watching out for cars, then pick up the new track that runs along the right-hand side of the road.
You go past the track up from Shelly Beach (there's a hint for finding a walk of your own!) and follow on to a car park at node I. Walk on through that, and pick up the track on the eastern side of the fence, and follow your nose.
Where you go from here is up to you, though the steel tracks can be a little slippery if it is wet and you have the wrong shoes. Runners are advised to use the dirt tracks, and cyclists are warned against following the steel, because of the risk of slipping and also the steps that loom up!
This file is http://members.ozemail.com.au/~macinnis/nhead/perimeter.htm.
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The page was first created on 17 January 2019, updated 1 August 2020.