Sweet Spot: Big Break, a few hundred acres of flooded farmland near Oakley
What's Hot: Yamamoto Senko
Local Advice: "You must tune into the tides," says Don Payne of Delta Bait and Tackle in Manteca. "A 6-foot tide could turn the morning's hot fishing hole into a mud bank by noon."
Prime Time: Late February through March for big largemouths
Record Fish: 18.62-pound largemouth bass, a delta record, caught in January 2002 near Little Mandaville
More Info: California Delta Chambers and Visitors Bureau, 209-367-9840; www.californiadelta.org (weekly fishing reports)