He hasn’t contacted his family since, and a four-month long investigation into his whereabouts has so far been unsuccessful.

In a statement, his family said they missed Mr Navarro dearly.

“It has been more than four months since we have seen or spoken to Daniel, our son and brother,” they said.

“We are very concerned as we have no idea where he may be or if he is safe.

“Daniel, we miss you and would love you to come home. If anyone has any information as to Daniel’s whereabouts, or if you have seen him since mid-March, we plead with you to come forward and contact police.”

Mr Navarro is olive-skinned, about 175 centimetres tall with a solid build, black hair and hazel eyes. He has a top front tooth missing and the name ‘Zac’ tattooed on the inside of his left arm.

He was last seen wearing a dark short-sleeved shirt, blue jeans and runners, with sunglasses and earphones.

Anyone who saw him around Joondalup on March 12, or who has seen him since or has any other information, should call Crime Stoppers on 1800 333 000 or make a report online. Reports to Crime Stoppers can be made anonymously and rewards are available.