School boys in straw boater hats, suits and ties mean we could be in the North Shore.
Over the Sydney Harbour Bridge (or the tunnel) and a short distance brings you to the Mary MacKillop Centre in North Sydney.
(Those blue buses can be used to take you anywhere in Sydney.)

The underground in central Sydney is fast and handy and Town Hall stop has a number of levels making it a bit tricky for the visitor to find their way but public transport is recommended. Access is improved on most stations by escalators and lifts.