Ordinance amending the Park Code to close the Great Highway Extension, beginning at Sloat Boulevard and extending south for a distance of approximately 3,317 feet, to vehicles to allow for a multi-use trail and to improve shoreline resilience as part of the Ocean Beach Climate Change Adaptation Project; making an associated finding under the California Vehicle Code; making environmental findings, including adopting a statement of overriding considerations under the California Environmental Quality Act; and making findings of consistency with the General Plan, and the eight priority policies of Planning Code, Section 101.1.