The family’s cars are believed to have been caught up in the storm surge, which breached the coastline and caused extensive flooding.
The vehicles were later discovered to have been swept into an inland loch.
The bodies of Archie, 36, Murdina, 37, and Calum, 67, were found first before the children’s in the following days.
Neil said: “You’re waiting all day for something, and then they tell you they’ve found them.
“It’s a relief in one way. But at the same time, they’re telling you you’ve lost everyone.
“That’s what’s difficult to deal with. You never deal with it.”
Cirsty remembered the anger and grief she felt in the wake of the storm.
She said: “The priest at the time said they went to God together.
“I was so angry, I said they didn’t. I said what kind of god would do such a terrible thing to such good people?
“To children who were so lovely and innocent?”
She said Murdina had been a great friend to her and was funny, generous and strong.