For hours of amusement check out Golf N' Stuff off the 101 freeway in eastern Ventura, just 20 miles west of Newbury Park. Golf N' Stuff features two 18-hole miniature golf courses, Indy style race cars (go-karts), bumper boats, bumper cars and lazer tag (offered at designated time frames; currently closed for refurbishment as of Oct 2015) and a large arcade. You must be 4' 8" tall to drive the go-karts and at least 4' tall to drive the bumper boats/cars, so make sure to wear heels if you're really short.
Each activity is priced separately. Mini golf as of August 2015 costs $9.00. You can also purchase a 2 hour unlimited use wristband on weekends for $25.00 (as of August 2015) and try everything. I highly recommend registering in the Golf N Stuff Email Club as they email periodic 2 for 1 mini golf coupons that come in handy. There are also printable coupons on the Golf N Stuff site at golfnstuff.com/ventura/coupons.html.
Wow, talk about a fun venue for a kid's birthday party! Prices range from $12.75 to $22 per person (pricing current as of August 2015) for Ameci's pizza, cake, access to the rides, etc.
Golf N' Stuff is open 365 days per year! Yes, it is even open Thanksgiving Day and Christmas Day!
There is also a snack bar that serves an assortment of items, like mini pizzas, hot dogs and pretzels. Enough to provide plenty of carbs for your activities.