Journalist Eliot Stein takes us along on the unique adventure of kayaking the perimeter of Manhattan Island and observes some of the pockets of nature that persist within New York's concrete jungle. Then a midwestern author shares his lifelong passion for the Mississippi River and delves into the recreational, ecological, and spiritual facets of America's mighty waterway. And TV host Samantha Brown tells Rick how she keeps herself from stressing out over what could go wrong in her frequent travels.