Several cruises of the RV Meiring Naudé in 1981 were aimed at deriving the background or average circulation in the Mozambique Basin. This information would be of direct benefit to determine the advection of isolated eddies in this area. The results reflected the existence of a strong (up to 67 × 106 m3s−1) but variable current in the vicinity of the Mozambique Ridge. An eddy associated with this current and situated east of the Ridge emerged as a significant feature of the survey. No evidence could be found of a consistent background flow in the Basin.