depends on the boat, a long time!
21 hours
Quite long...
50,244 miles
35 days
it takes 1 week to get to austrailia on a boat
What sort of boat do you mean? If you mean a sailboat: 66 days.
not very long
it takes a long time
About 3 hours.
? But you could travel by aeroplane
it about 5 months