The cold Malvinas Current (MC) is one of the main circulation patterns in the southwestern South Atlantic Ocean (Peterson & Whitworth III, 1989). This current originates as a branch of the Antarctic Circumpolar Current (ACC) (Provost et al., 1996), rounds east of the Falklands/Malvinas Islands, and flows northward along the continental slope of South America (Figure 1) (Willson & Rees, 2000). The MC follows the Subantarctic Front (SAF), one of three main fronts of the ACC in the Drake Passage (Barre et al., 2011;Sokolov & Rintoul, 2009). It is generally accepted that the MC starts near the Burdwood Bank at around 55°S; upstream from the sharp northward turn of the SAF, the flow is referred to as the northern branch of the ACC (Artana et al., 2016). At approximately 38°S, the MC meets with the Brazil Current, generating a thermohaline front known as the Brazil Malvinas Confluence zone (Brennecke, 1921;Deacon, 1937). Further downstream, both currents retroflect and instabilities generate prominent mesoscale structures (Chelton et al., 1990;Zyrjanov & Severov, 1979). On average, the front intersects the

We analyze the location of the extreme northern jet of the Antarctic Circumpolar Current based on the measurements in cruise 79 of the R/V Akademik Mstislav Keldysh to the region of the Drake Passage in February-March 2020. The jet occupies a position over the slope of Tierra del Fuego Island over a depth range of 400-600 m based on the measurements along four sections using the shipborne SADCP and CTD/LADCP casts. The width of this coastal jet is about 15-20 km. It penetrates to the depths of 200-300 m. The jet follows the direction of isobaths. Velocities in the jet reach 40 cm/s. It is likely that this jet is a local one and does not continue along the entire circle around Antarctica, but based on the satellite data of the absolute dynamical topography (ADT) this jet continues into the shallow region between Tierra del Fuego and Falkland Islands.