The mechanism is the same everywhere. When you check into a country you bring your crew list from the port of departure along with the passports. The passports are stamped, often with a special indication that they are crew, and the harbormaster keeps a copy of the crew list. Everyone aboard is the responsibility of the
captain during the stay, and it is the captain's responsibility to either take them when they leave or get them removed from the crew list first.
Removal from the crew list usually means going to the harbormaster/port
captain with the ongoing airline ticket (and passport to be marked) and getting the crew removed from the crew list. Sometimes they will accept a ticket to a nearby
destination if they are confident that
money will not be a problem, but otherwise a ticket home will be required. As one port captain explained to me, they don't dump their problems on their neighbors. When it comes time to leave the departing crew list must match the incoming crew list, less amendments made during the stay. If a crew leaves before the captain can get him removed from the crew list, the captain will be in deep stuff. There is also a good chance that the crew won't make it through the
airport because their passport is still marked with a crew stamp. And of course the next harbor will want to see all of the passports to match the crew list so leaving without modifying the crew list for a departed crew will get the
boat turned back or investigated. Particularly in the
Caribbean they have been doing this for awhile and the system is pretty tight. And they have no patience with spoiled yachties trying to circumvent the rules - so don't do it.
As a practical matter you want your crew to come aboard with their return ticket, unless you are paying for transportation. Unfortunately that may not
work if they are planning on getting aboard a different boat or travel on their own. When it comes time to leave the captain is ultimately responsible for that ticket. This works both ways. If you want them to leave, or if they decide to leave, that ticket is owed. And if a crew leaves a boat and goes to the harbormaster, not only will the ticket be needed but
food and board as well, until the flight, unless they are willing to stay aboard. And this is not the only liability: any money owed by crew (damage, unpaid bills, fines) are the ultimate responsibility of the captain. Also, all crew
medical expenses are the responsibility of the captain. And if the crew gets caught with drugs the
skipper risks freedom and boat. Think twice before taking on crew; learn to single-hand.
Greg