On a recent Sunday, the Marconi Conference Center opened the doors of its capacious Buck Hall. Hog Island oysters were being shucked and Lagunitas beer lay chilled over ice as members of the Marshall community mingled and plans outlining the center’s reformation were displayed throughout the hall.
In November, the center—a 62-acre historic state park above Tomales Bay—began offering its meeting rooms to community organizations free of charge and renting its 40 single overnight rooms…