Police are appealing for public assistance to help locate missing Langwarrin man Paul.
The 50-year-old was last seen at Lysterfield Lake in Lysterfield about 2pm on Sunday 22 August.
Police and family are concerned for his welfare as his disappearance is out of character and he has a medical condition.
An image of Paul has been released in the hope someone may recognise him and provide information on his whereabouts.
Paul is described as approximately 185cm tall with a sold build and short grey hair. He has tattoos on both his right and left forearms.
He was last seen wearing a black t-shirt, brown cardigan and grey striped pyjama pants.
He is known to frequent the Chelsea Heights, Chelsea, Carrum, Frankston, Rowville and Langwarrin areas.
Anyone who sees Paul or has information on his whereabouts is urged to contact Frankston Police Station on 9784 5555.