"Not satisfied, the shark came back again and when she put both hands in front of her to protect herself, the shark cut off both of her hands, one at mid forearm and the other at the wrist," she wrote.
"Her husband, having rushed back to help, then managed to wrestle away the shark and stayed between her and the shark until she walked out of the water and collapsed on the beach.".
The woman who made the funding page said her brother - the victim's husband - served Canada through its armed forces for more than 30 years, adding: "It's our turn to help them.".
He said the shark initially bumped into the victim's legs, before circling back and biting her thigh.
The 55-year-old woman, who has not been named by the authorities, was swimming in Providenciales, one of the Turks and Caicos Islands, on the morning of 7 February when a six-foot shark approached her.
