"I did what anyone would have done," he said. "The shark was latched onto her leg. I just jumped into the water."
The victim was brought to shore by other surfers who had fought off the shark but died of his injuries at the scene.
The 44-year-old from Scotland was on a family holiday when he went missing.
Another Brit suffered 'serious lacerations to his lower leg'.
Paige Winter lost a leg and some fingers in the attack.
It comes days after a fatality on the Great Barrier Reef.
A 33-year-old man has died after being attacked by a shark near the Great Barrier Reef in Cid Harbour. He was on a trip with nine other friends in Queensland, Australia.
The blue shark bit the victim while he was trying to pull it on board.
The authorities say diving is 'no problem.'
A tooth was extracted from a boy's leg.