The actual distance of the track is not stated anywhere on the official website but this is taken from their front page.
"The track has an asphalt surface of approximately one kilometre in length. The Q shaped track loops back onto itself which allows events to be run as hillclimbs over one or two laps. It is regarded as one of the better hillclimb venues in NSW/ACT and was purpose built in the 1970’s."
Here is a pretty good photo of the layout.

The corners are mostly pretty safe but sure you can get into trouble

Take turn 2, I came out of the gate at full noise in first gear, hit turn 2 flat out and then realised a part of it is adverse camber with a hump in it too, I became airborne, got crossed up and was lucky to gain control of the car and continue on and this was on my very first run... It sure got the heartrate going lol. Each run I did was faster than the previous one and I cant wait for next month where I will try and knock another 2 seconds or so off

Its great fun.
From turn 6 through 7 is all uphill and quite steep, the rest is downhill and comes up so fast its quite tricky. Most people seem to get into trouble on the downhill section after turn 8 but I have yet to see anything bad happen out there.
Cheers
Herne