A close call with tragedy was avoided on Sunday after a man who fell overboard off his 5 metre runabout was saved by volunteers from Marine Rescue Batemans Bay.
The man's boat was tipped from behind by a wave crossing the bar at about 10.30am.
An looker immediately called crews to the scene.
On a training run nearby, the Bateman's Bay unit's rigid inflatable rescue vessel Batemans 21 reached the man within five minutes and took him to safety.
The Freemans Reach skipper told the crew that the lifesaver he was wearing did not inflate properly.
The incident was a timely reminder for all captains to check the age, condition and servicing of their life jackets, Marine Rescue NSW Monaro Regional Controller Bob Herbert said.
"It was particularly fortunate the crew was on the water, which allowed them to rescue the skipper and return him safely to shore with 15 minutes of the base receiving the call for help."
"This boater had done the right thing, wearing his lifejacket to cross the bar, but it can only save your life if it operates effectively."
He praised volunteers Angelo Di Bella, Thomas Czarnick, Peter Elekessy and Robert Loftus for the speedy rescue.