Take a cruise along the Yarra River, past all the new developments, see the big ships, under Westgate into historical Williamstown. Of course it is as interesting the other way.
Or go by rail to Williamstown, have a coffee, fish & chips and take a ferry cruise back to Southgate. A winner.
Suggested by: Geoff Atkinson

I love trains and river cruises plus I have only been to Williamstown once and thought how pretty it was, just love history too