If travelling from Sydney, there are 2 main routes you can take.
1. The first is the scenic drive, coming through Peats Ridge, Laguna and Wollombi. This route showcases some amazing scenery and also has some great spots to stop for lunch in Wollombi if you are travelling at that time. This route has smaller roads which can be hazardous at night due to pot-holes and/or wild-life.
2. This second route is towards Singleton on the Hunter Expressway, which whilst 50km further, will have you arrive at about the same time as the scenic route. If you want to visit Pokolbin, Rothbury, etc then this route takes you through Pokolbin