Exploring the Theme Parks in Southern California. Disneyland Resort When visiting the California theme parks, you’ll absolutely have to go back to where it all began.

There are essentially three seasons for Southern California theme parks: Holidays (Halloween and Christmas), Festivals (January through April) and Summer (May through September).

Economic uncertainty, declining consumer confidence and a shift in visitation trends has forced Disneyland, Universal Studios and other Southern California theme parks to offer deep discounts on ...