The family of Shin Ik Noh isn't giving up finding their dad, as the search for the missing man moves into its third week.
Noh's son Sam said volunteers have scoured parts of Port Moody, Coquitlam and Port Coquitlam and the family has come to the conclusion he might not be in the area.
He said now the family is trying to figure out where he could go.
Searchers continue to also follow up on tips, including a possible sighting of Noh near the Lougheed Mall area Monday.
Searchers spent much of Tuesday looking in the Burquitlam area.
"We're still optimistic," Sam told the Tri-Cities NOW.
He also noted the family is still getting a good response from the public for volunteers, though some are choosing to search on their own rather than showing up at the search head quarters in St. Johns Street in Port Moody.
Noh, who suffers from Alzheimer's disease, was last seen by his wife on the morning of Sept. 18 before he left his house near Lansdowne Drive and Guildford Way for his morning walk.
When he didn't return a few hours later, the family called police.
The next day, Noh's family put out a desperate plea to the public in an effort to find him.
Meanwhile, Sam returned back to work this week, noting his dad would want him to keep his business afloat.
"I need a sense of normalcy in my life," he said, adding he will always keep looking for his dad.
The family is still looking for volunteers and donations to keep the search going and have set up a Facebook page under Noh's name and a website shin-noh.ca.
The family is also reminding volunteers to stay safe while out searching for Noh,
To watch an appeal by Noh's family, scan with especially when they're driving.
Noh is described as Korean, standing five feet six-inches tall, average build, clean shaven with short black hair greying on the sides.
He was wearing a black New York Rangers baseball cap; a green and navy blue long sleeved plaid shirt, dark green pants and black dress shoes.
Noh's family mentioned he was also wearing a Medical Alert bracelet.
He did not have a cell phone, cash or a credit card when he went for his walk.
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