Circular Quay is located on the T8 (T8), one of Sydney's operational metro corridors. As a terminus station, trains begin and end their journeys here – you'll always get a seat if you board from this end.

What makes Circular Quay particularly useful is its interchange connection with T2, T3. If you need to switch between lines, this is where you'll do it – and you won't need to exit or purchase a new ticket. The interchange corridor is clearly signposted with color-coded directions.