Alcatraz Island, a national historic landmark, is part of and managed by the Golden Gate National Recreation Area, a National Park Service unit that includes numerous park facilities within the SF Bay area, including Fort Mason, Fort Baker, Ocean Beach, and Crissy Field. Under the proposed project, the Park Service seeks to enter into a long-term agreement with the Port of San Francisco for the development and operation of an improved ferry embarkation site at Pier 31 1/2 to support Alcatraz Island visitors. The Port agreement would require the Park Service's selected concessioner to renovate the marginal wharf, the Pier 33 bulkhead buildings, and portions of the Pier 31 shed building. In addition, the Park Service's partner, the Golden Gate National Parks Conservancy, would renovate the Pier 31 bulkhead building and additional portions of the Pier 31 shed building. The proposed project would provide a combination of indoor and outdoor spaces to welcome, orient, and provide improved basic amenities for the public. The proposed project would also include other administrative and operational spaces, such as a new boarding ramps and floats to support the berthing of up to three ferry boats at a time. The Park Service also seeks to establish limited ferry service between Pier 31 1/2 and the existing Fort Baker pier in Sausalito. The proposed project would repair and upgrade the Fort Baker pier substructure, install a new gangway landing and float, and construct a new trail from the Bay Area Discovery Museum to the pier. Under the proposed project, the estimated number of ferry trips from the Pier 31 1/2 site would increase two ferry trips per day in the peak season.