The son of an 80 year old man who was reported missing on Thursday is calling for more volunteers to help in continuing the search for his father.
RCMP say search and rescue crews that search higher risk areas like ravines and trails have finished their work -- a few days of looking hasn't turned up anything.
Mounties continue to follow-up on leads and a company has volunteered to do an aerial survey.
Clark Song says, "I'm having and will have more and more church friends, sisters and brothers coming to help me."
Song's father Shengyun left a home in the 8600 block of 206-B Street in Langley to go for a walk and hasn't come back.