"Legal" UrbEx?

Hi all,

So I'm contemplating getting into UrbEx of sorts. I'm thinking of going about it from a slightly different angle, though I know this might not be in the true spirit of UrbEx and I may also be looking for a needle in a haystack.

I've come across a few overlays for Google Maps that people have put together over the years. These appear to be interesting places, but I get the impression most of these would be considered "off limits" to members of the public. I know this is typical of UrbEx to document places that are abandoned and off limits, I'm just not particularly keen on getting done for trespass.

Is anyone aware of places in or near to Canberra of significance that would be worth exploring and documenting in some form that would be considered a bit more open to visits from members of the public?