About 100 emergency service employees have been combing the Warburton space east of Melbourne right this moment, looking for Susan Shaw.
She was final seen at about 1.30am on Friday, when police noticed her out for a stroll.
In the present day, mounted police scoured elements of Yarra Ranges Nationwide Park, whereas police on filth bikes and the SES lined the Mount Donna Buang street.
The terrain is dense and steep, and volunteers are having to take further care within the moist situations.
Ms Shaw’s son, Kane Cashmore, is terrified for her security.
“She’s normally a very social individual, however she’s lower herself off from a variety of buddies these days,” he mentioned.
“If she hadn’t been consuming water, I do not know what, warmth exhaustion — I do not know what she’d find yourself doing.”
Tonight will mark 4 nights since Ms Shaw’s disappearance.
Temperatures at Warburton have been significantly chilly, creating extra trigger for concern for her household.
The general public is being urged to maintain a watch out for Ms Shaw, who was final seen carrying a inexperienced cardigan, denims, and vivid pink boots.