The Blue Mountains are part of a national park about 90 minutes from Sydney. We did a day trip, but I recommend spending two days in the area.
The glass bottom cable car is a short ride, but a great way to see more of the beauty.
A very steep railway ride was another way to see the area.
It was a good day trip from Sydney, and is featured in the book. I think you will want to visit the area when the weather is good, and the sky is clear.