Considered the best theme park in California's Inland Empire. This season when you want to see Santa Claus, Castle Park is the place to go on Saturdays and Sundays! If you would like to spend an entire day trying your hand at miniature golf, Castle Park has four courses all unique, challenging, and themed individually. Play all of them on one ticket in. Food is abundant at Castle Park -- pizza, nachos, bbq, and much more. The whole family will thrill to the rides, water park and arcade. So much for such a reasonable entry price. Normally the park opens at 1 p.m. daily, but check ahead to be sure and check out a real value in cost for such a big day of fun.