Denham Court is known for its mansion like homes in the quiet south western corner of Sydney greater metro. Driving up Denham Court road, it seems country like, you expect to see cows and sheep (and they are here) but the road is roughshod, it is just a back road from here to there, not an aspiring English estate, though once it tried to be.
The area has a surprising rich cultural history. You can read more about it here via the local councils page:
http://www.campbelltown.nsw.gov.au/HistoryofDenhamCourt
It also offers spectacular views all around, the cache is located in one such spot where you can, on a clear day, see all the way to Sydney city, some 48km drive away. Bring binoculars if you can and try to spot Sydney tower in the distance.
This is a cache made for a quick drive by. There are plenty of places to pull up off the road although no real parking. Muggles are sporadic, but some subterfuge is needed.
Please return everything as you find it. It's not a nano cache but too small for a pen so bring your own.
Good luck, I hope you enjoy it.
Props to FTF to Team Canary :)