There is nothing at the posted coordinates except a possible place to park whilst completing the Tagging Along Adventure Lab. There are lots of Art installations along the route of this Adventure.
This is the bonus physical cache for the Tagging Along Adventure Lab.
The Adventure will take you on a short walk along the walkway from Westmead car park towards the old canal (around 0.5 mile flat walk in either direction). Dogs and bikes are welcome along here.
You will get the coordinates and hint for this bonus cache when you complete the Adventure Lab. Please add a photo of your favourite tag or art to your log on this bonus.