There is a California Penal Code law that allows anglers to carry a gun while fishing and while hiking to and from their angling site. California Penal Code, Section 12025, prohibits carrying concealed firearms in California, but Section 12027 provides the following exemption to this prohibition: "Licensed hunters or fishermen carrying pistols, revolvers or other firearms capable of being concealed upon the person while engaged in hunting or fishing, or transporting those firearms unloaded when going to or returning from the hunting or fishing expedition." Remember that some areas that allow fishing, such as state and national parks, and some incorporated areas where fishing is allowed prohibit the possession of any firearm. Make sure to check on the local laws where you plan to fish.