Police are appealing for public assistance to help locate a man reported missing from Varsity Lakes.
27-year-old Cameron Smorenburg was last seen at a Varsity home on May 11, and reported missing four days later.
Police and his family hold concerns for Cameron as his behaviour is out of character.
He is described as 181cm tall with a medium build, brown hair and green eyes.
He may have been travelling on a KTM Duke 500 motorcycle bearing New South Wales registration CDM37, which was located in northern New South Wales on Sunday.
Police are appealing to any members of the public who may have information in relation to his whereabouts or who may have seen the motorcycle to contact them.