Attractions

Southwest has flights departing Feb 4 from Sacramento to San Diego, LAX or Orange County for $76 USD one-way if you book early.
Here some of the local attractions:

Sacramento (tripadvisor.com)

California State Capitol & Museum tour
Old Sacramento tour
Alopex Eco Adventures Tour
Sutter’s Fort State Historic Park
Sacramento Zoo
Lake Tahoe (2 hour drive) Ski/Casino

San Diego (tripadvisor.com)

Legoland
Sea World
Aquarium
San Diego Zoo
Zoo Safari Park
Dolphin and Whale Watching tours

Orange County (visittheoc.com)

Disneyland
Disney Adventure 
Knott’s Berry Farm
Aquarium of the Pacific
Medieval Times or Pirate’s dinner tournament
Dolphin and Whale Watching tours

San Francisco (sftourismtips.com)

San Francisco Zoo
Exploratorium
Fisherman’s wharf
Aquarium of the Bay
California Academy of Science (walk thru the Rain forest)
Bay cruise to Alcatraz
WWII Submarine Tour on Pier 45

You can purchase discount ticket for most events via websites like Groupon, Goldstar, Priceline, Travelzoo and LivingSocial.