Marathon Swimmer Chloe McCardel is attempting to set a world record doing something that's only been done once before—swimming from Havana, Cuba to Key West Florida through more than 100 miles of shark-infested waters. But, unlike the one time it was successfully done before, McCardel’s planning on making the swim without a shark cage. The … Continue reading Marathon swimmer Chloe McCardel on world record swim attempt from Cuba to U.S. without a shark cage