Open water swimmer Kim Chambers has endured just about the most frightening things the ocean has to offer: great white sharks, jellyfish stings, hypothermia, brutal currents and fierce winds. She has conquered the Oceans Seven, a series of marathon swims in channels around the world, and is the only woman to complete the 32-mile swim between the Golden Gate Bridge and the Farallon Islands. The documentary film of that swim, "Kim Swims," comes out Oct. 2.