Cal. Fish & G. Code § 10506
Nothing in this code prohibits the possession of firearms, BB devices as defined in Section 16250 of the Penal Code, crossbows and bolts, or bows and arrows by persons when traveling through any game refuges when the firearms are taken apart or encased and unloaded and the bows are unstrung or stored separately from any arrow or bolt. When the traveling is done on a route other than a public highway or other public thoroughfare or right of way, notice shall be given to the department at least 24 hours before that traveling. The notice shall give the name and address of the person intending to travel through the refuge, the name of the refuge, the approximate route, and the approximate time when that person intends to travel through the refuge.
Ca. Fish and Game Code § 10506