Government Code § 39930
ARTICLE 2. Establishment of Harbor Lines by Cities Generally
As used in this article:
(a) “Navigable water” includes a harbor, bay, inlet, and estuary.
(b) “Tidelands” includes submerged lands.
(c) “Owns tidelands” means by grant from the State, or otherwise, owns, holds, or possesses tidelands or the title to such lands.