The transport into the Caribbean Sea is composed of two components: the wind-driven regional circulation and the global meridional overturning. The MOC drives a flow from the equatorial region into the North Atlantic, carrying south Atlantic origin waters into this region. Studies from model results suggest, that the warm water MOC flow enters the Caribbean Sea basically south of Martinique, while the flow through the northern passages is of wind-driven North Atlantic gyre origin. This talk will present the data of five ship cruises, where the flow into the Caribbean Sea and at an alternative route across 16N have been observed. A water mass analyses by temperature and salinity properties leads to conclusions about the distribution of South Atlantic origin waters in this region and the corresponding transports into the Caribbean Sea and across 16N.