Great America, Santa Clara, California

A fun-filled day awaits you about an hour south of San Francisco at California's Great America theme park. While here, you can play with Nickelodeon characters, catch a thrill on one of the many death-defying roller coasters, and splash about in Boomerang Bay.

Adult admission at the gate costs $51.99, but you'll only pay $39.99 if you purchase tickets online at least three days in advance. The "Pay Once, Visit Twice" ticket is also a great value for $59.99, because it allows entrance to the park for two separate days during the season. (Photo: Cedar Fair Entertainment Company)