Data from five cruises during 1985--1986 along 63.55 ¿W, across the eastern Caribbean Sea, are examined for seasonal variability of geostrophic transport. A biannual maximum transport signal appears to correspond to that measured in the Florida Straits as well as to variations in the regional wind stress curl. Similar seasonal variations in the properties of water masses, entering the eastern margin of the basin and concentrated through the passages of the Lesser Antilles, are also indicated. A permanent system of strong westward flowing streams, interspersed by weaker eastward flowing streams, is shown to exist. ¿ American Geophysical Union 1990