The parents of missing German backpacker Jan-Christian Bielenberg arrived from Germany yesterday.
They delivered a heart felt plea to their son at a press conference in Bunbury yesterday morning.
They both were hopeful their son would be found alive and well.
“He is alive … until there is proof of the opposite,” Mr Bielenberg said.
Jan-Christian constantly kept contact with them during his time in Australia.
The last time they spoke to their son was two days before his disappearance.
Senior Sergeant Gardiner said police were still hopeful the young tourist would be found alive and well.
Police ask anyone who may have sighted him or with information to contact Crime Stoppers on 1800 333 000.