An ocean expert says the severed foot of missing fraudster Melissa Caddick (pictured with husband Anthony Koletti) could have travelled from Sydney cliffs before washing up on the NSW south coast months later.

The Daily Mail website reported an examination of goose barnacles found on the foot show it was likely floating off the NSW coastline for three to seven days before appearing on Bournda beach - some 400km from Ms Caddick's Dover Heights mansion.

Oceanographer Dr David Griffin told the inquest into the fraudster's death it was entirely possible her body entered the water when she was last seen in November 2020, then floating close to the ocean floor in strong currents for about 93 days before resurfacing in February 2021, the website reported.

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