New Free Sydney CBD Bus Shuttle
Its a high frequency service running every 10 minutes from Central Station to Circular Quay and back, via Elizabeth and George streets.
You can just hail the bus from any specially marked green CBD Shuttle bus stop, and hop right on.
The service runs 9.30am to 3.30pm weekdays, with a late finish of 9pm on Thursday evenings.
Weekend services run 9.30am to 6pm.