Family and friends of a Perth woman missing in Canada say they are "very worried" they have not heard from her in six days.
Alison Raspa, 25, moved to Whistler in May and was last seen on November 22 around midnight leaving her workplace, Three Below Bar.
She was reported missing by co-workers the next day.
Canadian news outlet, Whistler Question, said police had located an item of Ms Raspa's in nearby Alpha Lake Park.
"We are very concerned for Alison's well-being," police staff sergeant Annie Linteau told the publication.
"We ask anyone who may have any information as to Alison's movements from the time she was last seen leaving the Three Below Bar and the time her personal item was located at Alpha Lake Park on November 23 at 6.30am to call police immediately."
Canadian police have been searching the park for any signs of the former Greenwood High School student and a police dive team has been searching the park's near-frozen lake.
Temperatures in ski resort town of Whistler on Monday dropped to zero degrees.
A Perth friend of Ms Raspa's, Kerry Stokes, has taken to social media in an attempt to help find her.
"Friends, Alison Raspa is still missing!!!!!! She was last seen on the 22 November and not a word since. We are all very worried about her and need to know she is SAFE!!!!!!!!!," she said.
"If you have any news, whether you feel it relevant or not, reach out to her family, friends, colleagues, the POLICE!"