Ocean currents are natural flows of ocean water that move across and mix water in the entire ocean system on Earth. Two major ocean currents are the North Equatorial Current and the South Equatorial Current. Both of these currents lie just north and south of the Equator and flow in an east to west direction. Between them, directly on the Equator, lies the Equatorial Counter Current. It is called counter because it flows in the opposite direction, from west to east. It exists in the Atlantic, Pacific, and Indian oceans. It is a wind driven current, meaning that it flows near the surface of the ocean.