California Code, Civil Code - CIV § 846

(a) An owner of any estate or any other interest in real property, whether possessory or nonpossessory, owes no duty of care to keep the premises safe for entry or use by others for any recreational purpose or to give any warning of hazardous conditions, uses of, structures, or activities on those premises to persons entering for a recreational purpose, except as provided in this section.

(b) A “recreational purpose,” as used in this section, includes activities such as fishing, hunting, camping, water sports, hiking, spelunking, sport parachuting, riding, including animal riding, snowmobiling, and all other types of vehicular riding, rock collecting, sightseeing, picnicking, nature study, nature contacting, recreational gardening, gleaning, hang gliding, private noncommercial aviation activities, winter sports, and viewing or enjoying historical, archaeological, scenic, natural, or scientific sites.

(c) An owner of any estate or any other interest in real property, whether possessory or nonpossessory, who gives permission to another for entry or use for the above purpose upon the premises does not thereby do any of the following:

(d) This section does not limit the liability which otherwise exists for any of the following:

(e) This section does not create a duty of care or ground of liability for injury to person or property.