Being September, the wildflowers are blooming which is why I dropped by. I entered the Park at Limeburners Creek. Certain roads in this area are inaccessible to anything but high clearance 4wd due to idiots churning up the roads when it's been raining. The main track is accessible to all vehicles currently but it's not advisable to drive down here in the wet unless you have a 4wd as the ground gets very sticky (clay?) and slippery.
At the moment there's Boronia, lots a different yellow pea flowers, pimela, a couple of species of orchids and some other lovely wildflowers.