Nine months on he is still battling his way back to health, but says despite his ordeal he considers himself one of the luckiest men alive.
"I'm here, I'm alive and I'm all right," he told the Herald.
Mr Rundle's spine healed but his shoulder, trapped between rocks when he landed, was severely damaged. He has an intensive physiotherapy and rehabilitation programme and is constantly exercising and pushing himself to recover.
Mr Rundle's medical team told him his survival was a miracle.
"The surgeons said one of the reasons I survived the fall was on account of me being so fit and well.
"I was a scarecrow when I came out of hospital," he said. "But now I am reasonably fit again, apart from my arm ... My shoulder is munted, that's the best way to describe it ... it's a crumbled mess."
Surgeons at Auckland City Hospital initially told Mr Rundle his arm would never be useful again.
"My surgeon said 'you go and prove me wrong, though'.
"I love a challenge so I've been very involved in my own recovery."
Mr Rundle's wife Pauline said the past few months had been "full on" but she was happy to have him home. The couple are still living in the home where Mr Rundle's fall happened. They have extended their deck to the edge of their property to prevent anyone falling in future.
Mr Rundle said a lot of people had helped him back to health and he was grateful to all of his family, especially his daughter Debbie, who for some weeks took alternate shifts with Pauline. There were also friends, doctors, nurses and specialists.
"But I couldn't have got through this without Pauline."