The following is a list of great resources for Families & Nannies in the Bay Area:

Marin:
Bay Area Discovery Museum
Muir Woods and Muir Beach
Pixie Park
Train Town

San Francisco:
CA Academy of Sciences
Crissy Field
Exploratorium
Golden Gate Park
Japanese Tea Garden (type in Golden Gate Park)
Randall Museum
San Francisco Zoo
Sony Metreon
Zeum

Peninsula and South Bay:
Children's Discovery Museum
Coyote Point Museum
Gilroy Gardens
Happy Hollow
Hidden Villa
Hiller Airplane Museum
Monterey Bay Aquarium
Palo Alto Junior Museum
Roaring Camp
The Tech Museum

East Bay:
Chabot Space and Science Center
Oakland Fairy Land
Oakland Zoo
Tilden Park