Labor day is this happening this weekend, and if you don't have any plans yet, how about taking the family to Irvine Regional Park. There you can visit the Irvine Park Railroad, try out Fun Wheel Rentals, visit the OC Zoo, have a picnic and take a hike through this amazing and historic park.
At the beginning of the summer, i took my kiddies to try out the Fun Wheel Rentals. we ended up having the most fantastic time. we REALLY enjoyed the surry bike and rode it all over the park. i don't think we stopped laughing until we got home.