After being trapped in an isolated ravine for almost a week following a deathly plunge off a 200-foot cliff, the story of a Southern California grandfather's rescue is made even more miraculous as it was his own family who found him.

The 67-year-old man was discovered on Thursday evening -- six days after his car drove off a dark, twisting mountain road, reported Good Morning America on Friday, and is now recovering in hospital.

David Lavau's family members revealed how they refused to give up hope that their father was still alive and launched their own search party by going through surveillance tapes and cell-phone records.