Here is the info that you need;
oceancurrent.imos.org.au/oceancurrent.imos.org.au/sst.php The lifeguard was probably referring to the East Australian Current, which predominantly runs North to South down the east coast of Aus. At different times of year, and different points you can get back eddies, clockwise eddies which run north along the coast, very handy for people travelling north by boat, they will tend to stick closer inshore, same with whales migrating north.