More than 200 residents of Thousand Oaks and Westlake Village will take part Sunday in the 20th annual Conejo Valley Crop Walk, organizers said.
Thousands of walkers will be out around Ventura County for similar events, which are held worldwide to raise money to fight hunger.
The Conejo Valley 10-kilometer walk begins at 1:30 p.m. at Mountclef Stadium at Cal Lutheran University in Thousand Oaks, on the corner of Campus Drive and Memorial Parkway.
Forecasters say rain could dampen the event.
"It's looking like an increasing chance of showers for the weekend," said Gary Ryan of the National Weather Service in Oxnard. "And Saturday is looking better than Sunday."