Tuesday 02 April 2013 Martyn Tann left a family members home and walked to nearby Mullaloo Beach. He was last seen north of the surf lifesaving tower between 1.00pm and 3.00pm.
His backpack containing his personal possessions were later located on the beach in the vicinity of where he was last seen.
An extensive land and sea search has failed to locate Tann.
Tann is an interstate visitor and before his disappearance he was attempting to obtain a lift to the north of WA.
If you have information that may assist police to locate Martyn Tann please call Crime Stoppers on 1800 333 000.