Listed alphabetically by city…adding more as I discover more.
CALIFORNIA FIELD TRIPS (some free, some paid, some discounts)
Fresno
Fresno Chaffee Zoo: (Fresno, CA)
Lone Pine
Museum of Western Film History: (Lone Pine, CA)
Los Angeles
The Broad: (Los Angeles, CA)
California Science Center: (Los Angeles, CA) FREE
Getty Museum: Art museum and gardens (Los Angeles, CA)
Griffith Observatory: Space observatory (Los Angeles, CA)
La Brea Tar Pits: (Los Angeles, CA)
Los Angeles County Museum of Art (LACMA): (Los Angeles, CA)
Natural History Museum of Los Angeles County: (Los Angeles, CA)
Peterson Automotive Museum: (Los Angeles, CA)
Mountain View
Computer History Museum: (Mountain View, CA)
Oakland
Oakland Museum of California (OMCA): (Oakland, CA)
Palm Desert
Robert & Francis Fullerton Museum of Art: (Palm Desert, CA) FREE
Palm Springs
Palm Springs Air Museum: (Palm Springs, CA)
Palm Springs Art Museum: (Palm Springs, CA)
Pacific Palisades
Getty Villa: (Pacific Palisades, CA)
Pasadena
Norton Simon Museum: (Pasadena, CA)
Perris
Southern California Railway Museum: (Perris, CA)
Pomona
American Museum of Cermaic Art: (Pomona, CA)
Riverside
Riverside Art Museum: (Riverside, CA)
Sacramento
California State Railroad Museum: (Sacramento, CA)
California Museum: (Sacramento, CA)
Crocker Art Museum: (Sacramento, CA)
State of California Capitol Museum: (Sacramento, CA)
San Francisco
Cable Car Museum: (San Francisco, CA)
California Academy of Sciences: (San Francisco, CA)
Exploratorium: (San Francisco, CA)
Legion of Honor & de Young Museum: Fine Arts Museum of San Francisco (San Francisco, CA)
San Francisco Museum of Modern Art: (San Francisco, CA)
San Juan Capistrano
Mission San Juan Capistrano: (San Juan Capistrano, CA)
Santa Barbara
MOXI: The Wolf Museum of Exploration and Innovation (Santa Barbara, CA)
Santa Barbara Arts & Crafts Show: (Santa Barbara, CA)
Santa Barbara Botanic Garden: (Santa Barbara, CA)
Santa Barbara Historical Museum: (Santa Barbara, CA)
Santa Barbara Museum of Art: (Santa Barbara, CA)
Santa Barbara Museum of Natural History: (Santa Barbara, CA)
Santa Barbara Museum of Natural History Sea Center: (Santa Barbara, CA)
El Presidio de Santa Barbara: (Santa Barbara, CA)
Santa Barbara Zoo: (Santa Barbara, CA)
Santa Rosa
Charles Schulz Museum: The creator of Charlie Brown (Santa Rosa, CA)
Simi Valley
Ronald Reagan Library and Museum: (Simi Valley, CA)
South Lake Tahoe
Tallac Historic Site: (South Lake Tahoe, CA)
Stockton
Haggin Museum: (Stockton, CA)
Sylmar
Nethercutt Museum: (Sylmar, CA)