As already mentioned, QVB is the Queen Victoria Building, situated in Town Hall, right by the rail station and also the tram.
OPT is the Overseas Passenger Terminal by Circular Quay for the cruise ships.
I haven't used the link.
I have used google maps to either confirm or to search an area for a more exact name (such as with the ballons in the yarra valley).
In my mind, using the clues and to narrow a search is fine.
Yes, higher end places often suggest a tip now, but again it is not mandatory. We tend to just round up if paying by cash ( I.e $180 becomes $200) or if paying by card, we leave a note or two in cash as the tip.
You don't need to tip the porters. In fact, as mentioned, in Australia you do not need to tip anyone but you can.
Yes, not so great for us when we travel to the US.
Btw, Tipping here in Australia is appreciated but certainly not mandatory. 10-15% is nice but again not a formulated amount that has to be paid.
It can be a myriad of reasons, the sshipmay not be ready to go due to things like Passengers, cargo, crew, harbour pilot, fuel, wildlife, entertainers, mechanical issues, weather conditions like rain, tides, winds,
Sydney Swans currently level on 16 points with 3 but most likely 4 teams once the Giants play today, which will have them in either 2nd or 3rd due to percentage.