Your tour guide Peter Starr has a Masters Degree in Astronomy and was the former manager at Siding Spring Observatory.

The tour involves 

A presentation in the theatrette teaching you some basic knowledge in the night sky and astronomy, showing images taken at the observatory of the objects you will see.

Point out the stars, planets, and constellations with a laser pointer. 

View through up to 6 telescopes at least a dozen objects

Detailed explanations of what you are viewing. 

Answer all your questions about the universe. 

Take a photo of a spectacular nebula with your canon or Nikon SLR camera

The show is limited to maximum group size of 50 people though this is only usually achieved on long weekends and school holidays. 

Note that the telescope viewing is outdoors and it gets quite cold in the winter months so please wear warm clothes when attending.