Police are seeking assistance to help locate 67-year-old Mark Cannon last seen on Weyba Road, Noosaville on Wednesday 30 June.
His distinctive green Honda 125cc motorcycle was found in the car park opposite Lake Weyba Reseve on Lake Weyba Drive, Noosaville on Friday 2 July.
He is described as Caucasian, approximately 175cms tall, with a slim build, white hair, partial white beard and blue eyes.
He was last seen wearing a black motorcycle jacket, blue jeans, brown shoes and black glasses.
Anyone who has seen him or has any information in relation to his whereabouts is urged to contact police.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.
Quote this reference number: QP2101227147.