You couldn't go by boat to Rome from Pompeii. Rome is north of Pompeii and inland.
A few hours.
one month
a long time
it has different lenghths because it depents on what boat or ship you are traveling in.
It should take about 22 hours.
About 3-4 months.
how long will it take a small boat from england to Greece
what are you taking to get there
depends on the boat, a long time!
The results of your search for Lisbon (LIS) to Paris (PAR)Shortest Flight Duration 2 hours 15 mins
How long will it take to get to Amsterdam from new york on a boat