What is the age of concent in internation waters?

Question

for example... a cruise ship

Answer 1

In international waters, I believe the captain's the closest thing you get to a legal authority.  He's likely to enforce the rules of his cruise line, and the country he's native to.

You should keep in mind that some countries (i.e. the USA) expect you to follow their laws, even when out of the country.  If you do something illegal overseas, you can still get punished at home.

Answer 2

The same as the port from which you sailed. If it is Miami, Fl. it is 21 yrs old. This is followed by all the cruiseline that sail from the USA. The Maritime laws are many and copnfusing and no the Captian will not legally marry you at sea either.