"The Hayes are devastated," he told the Weekend Herald.
"Connor's parents are coming out here to spend a bit of time. That will be good for them I think. Our hearts go out to the families. They are stuck on the other side of the world and they can't do anything about it."
After the wreckage was found Haast locals banded together to search for the pair. Mr Manera said the incident had hit the small tourist town hard.
"In these situations the community steps up and does what they can. They rally around, they help out. They are a big hearted people around here; they really are a good community."
The Hayes' would stay at a local motel owned by local Land Search and Rescue member Greg Hope and his Canadian wife Nathalie Giroux who hails from the same area as the missing man.
Mr Hope, also Haast area electoral candidate for the Westland District Council, hoped to help the Hayes' find closure by explaining in depth everything that had been done so far to find their son.
"We just don't want them to think we've stopped searching," he said.
Meanwhile, staff at Ottawa Hospital, from which Ms Lam was on a leave of absence from her position as sonographer, are pitching together to bring her home.
On the hospital's Facebook page, they remember her professionalism, personality and wonderful smile, which will be missed by her friends and colleagues. "It is an incredibly difficult time for those who knew and loved Joanna."
And they urge donations to the Joanna Lam Memorial Fund, set up by the Ottawa Hospital Foundation.
The post says the money will ease the financial burden on Ms Lam's family as they deal with her death.
According to the post, which featured a photo of Ms Lam in blue scrubs, it will cost between $17,500 and $23,400 to bring her body back to Canada. Any extra funds will be donated to the volunteer West Coast land search and rescue team.