The harbor at Cartagena, Spain.
Cartagena holds a shipyard as well as a major Spanish naval base.
Cartagena is the base from which the Spanish fleet sailed in February, 1797 to defeat at the Battle of Cape St. Vincent. It is where the fictional Lieutenant Nicholas Ramage, holding a forged Protection, was held awaiting transit to the United States. It is also where the real British officers Thomas Hardy and Jonathan Culverhouse were held until their exchange was arranged by Commodore Horatio Nelson on February 10, 1797.