This is the kind of irresponsible science journalism that I despise. The headline:
Monster whirlpool off SydneyAnd here is the picture
And here is the explanation of the picture
Explaining the image
Variations in sea levels above or below the normal are shown, with the two icy whirlpools in dark blue because the deep cold water has helped pull the ocean surface down by around 70cm.
The icy whirlpool closest to Sydney is 200kms across and plunging 1km towards the ocean floor. It's about 100km east of Sydney and moving clockwise.
Dude, a "MONSTER WHIRLPOOL" should not have to be explained.
It should be sucking oil tankers in.