Open carry is legal in California in unincorporated areas and any other area where shooting is not prohibited (please excuse the double negative). Examples of shooting prohibited areas are; from vehicles, from roadways, no shooting areas, etc.

Under the California Penal Code, you may carry a handgun concealed, even with out a CCW when hunting or fishing as long as you have a valid hunting or fishing license. If I were to rely on this specific PC section, I’d make a photo copy and carry it with me. I’m a retired Sheriffs Sergeant and in my career, more than once well meaning deputies ignorant of this section have cited people unlawfully. One of these boneheaded moves made it to an episode of COPS when they were filming us.