A 29-year-old Canadian tourist has been missing for six weeks, after he was last seen in Cairns, Queensland.

Maxime Gagnon has traveled all around Australia, having previously spent a month picking cherries in the Derwent and Coal River valleys in Tasmania.

A Queensland Police spokesman told Daily Mail Australia they believe Mr Gagnon was staying in a hostel in Cairns at the time of his disappearance.

Canadian tourist Maxime Gagnon, 29, was last seen six weeks ago in the Queensland city of Cairns

The backpacker has traveled all around Australia, having previously spent a month picking cherries in the Derwent and Coal River valleys in Tasmania

In a sad coincidence, a friend posted on Maxime Gagnon's Facebook before he went missing.

Translated from French, the comment reads 'Enjoy your youth and be careful!'

The Montreal local was reported missing after failing to contact friends or family after May 6.

There has been one unconfirmed sighting of Mr Gagnon since his disappearance, around the Cairns Esplanade lagoon pool in the last week of May.

It isn't the first trip to Cairns for the backpacker, he had visited the area in August 2015, according to a post he made on the Paradise Adventure Facebook page.

'Just had an amazing trip on Fraser Island. It was everything I was told and even more. I'm glad I stopped by Paradise Adventure when I was in Cairns.'

He had also spent time in Tasmania in January, 2015 where he worked as a fruit picker.

The 29-year-old is described as 180cm tall, Caucasian in appearance, proportionate build with blue eyes and brown hair.

The Queensland Police spokesman told Daily Mail Australia that they believe the tourist arrived in the country in April.

Anyone who has seen Mr Gagnon is urged to contact Policelink on 131 444.

It isn't the first trip to Cairns for the backpacker, he had visited the area in August 2015, according to a post he made on the Paradise Adventure Facebook page

The 29-year-old is described as 180cm tall, Caucasian in appearance, proportionate build with blue eyes and brown hair