Grandma begins 103-mile swim from Cuba to Florida

British-Australian swimmer Penny Palfrey smiles as she is flashed a thumbs up at the start of her bid to complete a record swim from Cuba to Florida, in Havana, Cuba, on June 29. Palfrey aims to be the first woman to swim the Straits of Florida without the aid of a shark cage. Instead she’s relying on equipment that surrounds her with an electrical field to deter the predators.

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