A retired GP in Western Australia is still missing months after telling her family she was going for a walk.
Dr Nathalie Casal told family she was going to walk the Bibbulmun Track, about 30km east of Perth, with a "large group" in December last year.
The 71-year-old has not been seen or heard from since.
The Bibbulmun Track is a long-distance 1,000km trail that stretches from Kalamunda, east of Perth, to Albany.
Her family reported her missing three months later on 7 March.
WA Police told SBS News in an email on Monday that the investigation is ongoing.
"Wanneroo Police continue to make inquiries regarding Dr Casal's whereabouts," the email stated.
Police recently conducted searches of bushland in the vicinity of her home and Lake Gnangara, however "nothing of note was located", police said.
Casal is described as being approximately 157cm tall with a slim build, short grey hair and brown eyes. Source: AAP / WA Police
'Off the grid'
Casal's son, Ramon Casal, told ABC radio in April that his mother was a "private person" in terms of letting those close to her know her plans but the disappearance has been difficult for the family.
He pleaded with bushwalkers in the northern suburbs, Gnangara Pines plantation and Gnangara Moore River State Forest to "pay a little bit more attention than usual" in the hopes that some sign of his mother could be found.
Casal said his mother deactivated her phone and gave it to his aunt, who was the last family member with her on 6 December before she went "off the grid".
He also told the radio host that the family found out in the course of the police investigation his mother was diagnosed with a serious illness in 2022, which allegedly prompted her to retire from her practice.
Casal said there had been no digital trail or bank account purchases since 3 December.
She is described as being approximately 157cm tall with a slim build, short grey hair and brown eyes.
Concerned locals responded to the WA Police's missing person report on its Facebook page in March.
Many said she was a much-loved GP in the area.
"She was my GP for 15 years," one comment said. "I hope she is found well and safe."
Police continue to urge anyone who has information regarding Casal's whereabouts to report the information to Crime Stoppers on 1800 333 000 or by reporting online at .
Anyone who sees Casal is asked to call police immediately on 131 444.
