Off the east and south shores of the colony the Mozambique or Agulhas current sweeps south-westward with force sufficient to set up a back drift.
It is a deflected stream from the west drift of the " roaring forties " and coming from Antarctic regions is much colder than the Agulhas current.
Off the southern point of the continent the Agulhas current meets the west drift, giving rise to alternate streams of warm and cold water.
On clearing the land south of the Cape the waters of the Agulhas current meet those of the west wind drift of the Southern Ocean, and mingle with them in such a manner as to produce, by interdigitation, alternate strips of warm and cold water, which are met with at great distances south-west and south of the Cape.