Water police have rescued a fisherman from a channel marker after his boat sank in Corio Bay on Friday 3 March.
Investigators believe the man was operating his boat between Point Wilson and Portarlington when it struck an unlit beacon and began to take on water.
The skipper and sole occupant of the vessel, a 56-year-old Geelong man, decided to head back to Geelong, however his boat sank just after 11pm.
The man activated an Emergency Position Indicating Radio Beacon (EPIRB) and swam to a nearby shipping channel marker before climbing up inside it.
Victoria Police received notification of an activated EPIRB about 11.15pm and dispatched a helicopter to investigate.
The helicopter located the fisherman perched inside the channel marker, where water police rescued him about 12.45am.
Police brought the man back to shore and he was taken to hospital as a precaution; police were yet to recover the boat.