A different kind of swim lit

The story is tragic, and I don't wish to undermine that, but I am so absolutely intrigued by this part: "As her family told The Globe in a lengthy letter responding to an interview request, 'She even combined her two passions for reading and fitness by figuring out how to read a book while swimming laps.'” I can't even begin to imagine how this could be accomplished. A book enclosed in plastic wrap? A page skimmed at the end of every lap? An audio book and a waterproof Sony sports walkman? Regardless, I am impressed.