There's grave fears for a 66-year-old man who has now been missing near Dwellingup for over two days.
Francis Ernest Nelson, known as Frank, had been camping in the Nanga Brook area and was last seen leaving his campsite about 4.30am on Saturday with his canoe.
About four hours later, rangers found his empty canoe and paddle floating in the river near Bob's Crossing.
Mr Nelson's vehicle was parked nearby on Murray Valley Road.
Despite an extensive search by Water Police, Mounted Police, SES volunteers and drones, there has been no sign of Mr Nelson.
Mandurah Crab Fest boasts huge range of free, family friendly entertainment
Fuel prices surge in Perth, Mandurah
Teen boys charged over Mandurah burglaries
Tragic update in search for missing man Robert Snyder
Premier Roger Cook to leave Kwinana electorate, move to Perth
Mandurah Marine Rescue's new vessel named in memory of nun who survived 1959 boating accident
Teen dies in motorbike crash at Waroona Dam
Shark alert issued after whale carcass reported at Preston Beach
Kwinana businesses to refuse serving students during school hours