It depends on how fast your sailboat is and the weather. If you are in the boat on a trailer it's 55 mph times the distance.
It is 733 miles according to Google Maps.
It depends on the speed of the boat
Depends on speed of boat.
A long time
how long does it take to travel by boat from vitnarm to australia
Depends on your boat
How fast is the boat going?
It depends what type of boat! A rowing boat? A battleship? A ferry?
Check
not very long
? But you could travel by aeroplane
That depends on your speed.