Police are focusing on a waterfall in northwest Tasmania in their search for a Belgian tourist feared dead after vanishing near a remote walking track.
Investigators say 31-year-old Celine Cremer was last seen at Philosopher Falls track at Waratah near Cradle Mountain on June 17 and was equipped for a light walk before she disappeared.
Her family reported her missing on Monday after becoming concerned for her welfare following more than a week of no contact.
A car belonging to Ms Cremer was found in the falls car park and was first spotted by witnesses about June 20, the same time the last signal from her phone was picked up in the area by police.
Crews are battling freezing temperatures, snow, rain and dense bushland in their search.
They were on Friday focusing their efforts around Philosopher Falls waterfall, rappelling from a viewing platform to search surrounding bushland and thick vegetation.
Police have released drone footage of the cascading falls surrounded by dense greenery.
Tasmania Police Inspector Anthea Maingay reiterated Ms Cremer was feared dead after police received expert medical advice indicating she could not have survived recent weather conditions if exposed in the wilderness.
"Our information indicates Celine's car has been in the car park since at least 20 June and we believe she was only equipped for a light day walk," Insp Maingay said in a statement on Friday.
"Our thoughts remain with Celine's family and we are continuing our efforts to locate her in an attempt for them to have some answers at this tragic time."
Philosopher Falls walking track remains closed.
