The roof of the leading cavern is about 12 metres down below Hunter Road, while its flooring is about 30 metres deep. The alignment of the key cavern and tunnels follows as closely as you can that of Hunter Avenue earlier mentioned to stay away from Business skyscrapers’ deep basements. https://sydney-cbd-limousine19629.blognody.com/25877230/the-smart-trick-of-sydney-cbd-chauffeur-that-no-one-is-discussing