British-Australian dual citizen swimmer Penny Palfrey smiles during a press conference to announce her crossing between Cuba and Florida, in the press room at the Hemingway Marina in Havana, Cuba, Thursday, June 28, 2012. Palfrey, who will begin her journey Friday morning, is trying to become the first woman to complete an unassisted swim across the Straits of Florida without the aid of a shark cage. Palfrey traversed the English Channel twice and also has completed a continuous swim from Gibraltar to Morocco and back. (AP Photo/Franklin Reyes)
