As an option on most tours to the Blue Mountains is a side trip to Scenic World.
There are three rides at Scenic World, this is the Cableway, the steepest aerial cableway in the Southern Hemisphere.
The cableway travels just over 500M with amazing views of the three Sisters, Orphan Rock and Katoomba Falls.
http://www.tourstogo.com.au/tours/blue-mountains/l176?q=scenic%20world