He examines allegations of the exploitation of crews and sexual crimes against passengers that go unpunished or are even covered up.
Are cruise ships in effect floating cities with no police force?
He visits Labadie, sometimes described by its cruise company owners as a private island.
But it is, in fact, part of mainland Haiti.
In this corner of one of the world's poorest and most violent countries, the cruise industry has created a little paradise.
But how much benefit does it bring to the local people?