When I was in grad school my friend Misty kept shaking her head at the way Philadelphians throw their trash around. Apparently they don't do that in San Diego. Sigh. Seems like a lot of trash flows through Darby Creek each year. When the tide is low it gets hung up here and there, like these cups and bottles. And you can usually find bits of plastic and paper snagged in the roots and branches of the trees that overhang the bank.