On Sunday morning, the public is invited to bike or walk on the Pasadena freeway, which will be closed to cars for Arroyo Fest, an event designed to improve the quality of life of residents bordering the Arroyo Seco. Larry Mantle talks with Occidental's Robert Gottlieb about the event, as well as Tim Brick of the Arroyo Seco Foundation, who will describe the efforts being made to restore the Arroyo Seco stream and watershed to their natural states.