Another one that sounds interesting and hopefully they repeat is this from The Chronicle;
Historic Marinship Walking Tour
A former shipyard worker leads a waterfront walking tour of World War II shipyards constructed in the Sausalito marshlands. Noon Sat. Bay Model Visitor Center, 2100 Bridgeway, Sausalito. (415) 332-3871.
Starts 10 AM at the City Hall steps and tours downtown. A project of the Larkspur Heritage Committee and conducted by Larkspur history maven Dick Cunningham. Always fascinating, and the weather looks to be great. See you there!