Cal. Gov. Code § 14672.3
Notwithstanding Section 14670, the Director of General Services may lease for a term of up to five years, with an option for a five-year extension of the lease that may be acted upon by the lessee at any time during the lease, portions of a levee surrounding approximately 32 acres of submerged tidelands at the confluence of the Sacramento and San Joaquin Rivers, north of Antioch, known as Lower Sherman Island, which are currently under lease for a term of five years to owners of buildings situated on such property. If the option to extend the lease for five years is exercised the annual rental shall be increased 50 percent over the current rental in consideration therefor. The lessee may, with the approval of the director, assign the lease or option, or both, to a third party.
Ca. Gov. Code § 14672.3