The field, which runs from the Marina district to the Golden Gate Bridge, used to be the industrial backdoor and airfield of the Presidio Army base. When the Army turned over the base to the National Park Service in 1994, the field was asphalt-paved and strewn with rubble. Since then, the park service, aided by volunteers, has built a waterfront promenade, restored a 20-acre tidal marsh, planted thousands of coastal plants, and created a picnic area and a small outdoor amphitheater.
Admission is free.
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