Paul Attalla rowed across the Atlantic Ocean, finished third in a 500 mile kayak race having never done distance sea kayaking before, and won a non-stop bike race from Canada to Mexico. He knows something about exhaustion. He and Jon--who has island-hopped across the Pacific, circumnavigated Ellesmere Island, and gone around Cape Horn in a kayak--swap stories about being tired. Sharks, wolves, and a broken ore in the middle of the ocean.