Doctors are pleased with his progress and say his condition is stable, but Sir Douglas said the frozen feet were troublesome.
Since his cliff plunge, he has also fallen down stairs and this month, during a quick trip back to London for an oncology scan, fell in Eaton Square and found his left leg trapped under an SUV. The car backed off him, leaving him with not much more than a scraped ankle and "injured pride". But he's philosophical about his run of bad luck.
"Even when you've got cancer, life goes on. Here's me skydiving off a cliff."
Sir Douglas has been back to look at the cliff and cove below, where he and his daughter had been planning a family picnic before the accident.
"It was a long way down, very steep with lots of rocks."
His injuries were gradually healing, he said, and he was looking forward to relaxing at Matauri Bay before returning to London.