Notwithstanding any other provision of law, the commission may include, in any issue of revenue bonds, funds sufficient to finance the establishment of a ferry system as authorized by Section 30356, including the purchase or construction of ferry boats, wharves, docks, ferry slips, and other facilities necessary to the operation and maintenance of a ferry system. Upon determining that it is feasible to do so, the commission shall take all steps necessary to finance the establishment of ferry systems. Revenues derived from the operation of any ferry system shall be pledged as security for the payment of the bonds issued to finance the establishment of the system.