The hunt for missing Melbourne mum Elisa Curry has been scaled back after four days of intense searching for the woman who disappeared from a popular seaside town.
The 42-year-old went missing from a holiday house at Aireys Inlet, a small town on the Great Ocean Road, and widespread air, land and sea searches have failed to find her.
Police and SES crews scaled back the search on Wednesday afternoon but officers are expected to continue looking for Ms Curry on Thursday.
It is understood this may include door-knocking neighbours for information.
Police are investigating a theory Ms Curry, a marathon runner, may have become disorientated or lost on a jog but haven't ruled out "suspicious circumstances".
"Elisa was last seen about 10pm on Saturday evening by a neighbour. She went to bed, we know that," Inspector Peter Seel told ABC radio on Wednesday.
"Unfortunately there's been no sightings of her since."
Her husband David and their children had watched the AFL grand final in Melbourne and arrived at Aireys Inlet about 9am on Sunday and reported her missing.
An avid and fit runner, Ms Curry ran marathons in 2017.
"She's actually been known to run to Lorne and back ... along the tracks in the bushland," Insp Seel said.
Aireys Inlet is about 20km from the holiday town of Lorne.
Police initially suggested the mum-of-three might have gone for a run with her dog at night, but the labrador was discovered in a neighbour's yard on Monday.
David Curry asked for anyone with information about his wife's whereabouts to come forward.
"We just want her to come home. Elisa if you're out there can you please contact us?" Mr Curry pleaded on Tuesday.
"If anyone has seen anything or heard anything, can you please, please call police, please call triple-zero."
Insp Seel said police were keeping their options open.
"She could have gone for a run and injured herself, she could have become disorientated and lost, there could be suspicious circumstances," he said.
Police on horseback and dirt bikes have been searching rugged terrain behind Aireys Inlet, while water police have been searching the cliffs and coastline.
