Robert Durell / Los Angeles Times
Retirees Rod Smith of Vallejo, Calif., seated, and Mark Hale of Vacaville, Calif., enjoy fishing off Bacon Island in the Delta region near Stockton. The heart of the California water system, the Delta region is where the Sacramento and San Joaquin rivers converge before flowing to San Francisco Bay. Much of Southern California's water flows through the Delta before entering canals to the region. Officials say the water system is in peril as drought looms and there is a greater demand than ever for water.