
The red and yellow clad surf lifesavers on our beaches are volunteers. (Local councils also employ paid lifeguards in some places). Here at Maroubra, this man was working hard (with colleagues) trying to get people to stay in the safe areas to swim.
Every year people drown on Australian becahes from swimming in dangerous areas. Often the water that looks the calmest is in fact a rip which will carry a person way offshore very quickly. People often panic and lose energy trying to swim against the rip. Correct procedure is to let it carry you until it peters out, then swim to one side and attempt to catch waves back to shore. If you swim at a patrolled beach, swim between the flags in the patrolled area, and if you get into difficulties, raise one arm to attract attention from one of these dedicated band of volunteers.
Read more about surf livesavers
here