One young woman, Lily Harmer-Taylor, 19, who was on board with them is already confirmed dead. The missing are:
- Skye Donnet, 18.
- Jule Wiltshire-Padfield, 15.
The incident began when the group borrowed a canoe to visit friends across the lake.
As they were paddling home, they ran into trouble and ended up in the water. None of them was reportedly wearing a life-jacket.
Around 5:30 p.m. PT a witness spotted the canoe about 150 metres from shore with two clinging to the sides and one person inside.
By the time rescuers reached them, only Harmer-Taylor was still inside the canoe.
She was found unconscious, but later died in hospital after attempts to revive her failed, according to Dan Nicholson, who owned the canoe used by the friends.
"They did CPR on her for five hours, they got her heart going, she was breathing through a ventilator, but she never came back," said Nicholson.
'It's very raw'
Over the weekend, a search by an RCMP helicopter and search and rescue volunteers was unable to find any trace of the three young men on the lake or the shoreline.
David Harley, who lives in the small community of New Denver, which three of the four called home, says the news has hit the small community hard.
"They're the same age as my kids, so you get to know all the kids in town pretty well. I think everybody's kind of in a state of suspended animation because there's a lot of unknowns, but everybody's stunned. It's very raw."
On Sunday night, a number of residents from the area gathered for a community healing ceremony on a beach on the shore of Slocan Lake.
Grief counselling is being offered to students in New Denver and the surrounding area.
Google Maps: Slocan Lake, B.C.