Pls note that crew which is arriving on board do not need special visa to enter our country. They must have valid seaman book and enter in our country as crewmember. On the other hand pls note that crew which arrives to our country by flight in order to embark / crew change in our ports, depending of his nationality, would need visa to be able to enter in our country.
Crew change can be done at airport, terminal or anchorage. The only restrictions is that vessel must keep with safety minimum crew require 24/7.
Crewmember can only stay ashore 48 hours after vessel departured.
Embassy or consulates are available only at Buenos aires city.