Mr Everett remembered leaving the road, which was slippery after two days of torrential rain, but said everything else was a blur as he slipped in and out of unconsciousness.
He spent one night at Waikato Hospital before he was discharged with just 12 stitches in his forehead and cuts on his arms.
"When you fall metres off a cliff you expect worse than what I've got, really.
"I just remember leaving the road. I was unconscious almost straight away. I had no idea that when I landed there was someone on the rocks. It's scary to think about."
Ms Signal said she had been collecting crabs with the children, aged 3 and 6, when the car suddenly flew over the bank above them.
Harry Everett in his hospital bed. Photo / supplied
It landed within 2m of her daughter-in-law, she said.
"She was right there, she was screaming and running and we looked up as the car was flying through the air.
"It was so noisy and then dead quiet at the end - it was just hush quiet."
Ms Signal said she immediately assumed the worst and ran frantically down the sharp rocks so she could get cellphone service to call for help.
