The 4th of July Celebrations in Simi Valley and Moorpark happen at different times and days. Moorpark starts off with a July 3rd celebration. Moorpark's 4th of July event is scheduled to start at 4 p.m. and the fireworks show to start at 9 p.m., at Arroyo Vista Community Park, 4550 Tierra Rejada Road. Come enjoy the fun with Live bands and family games. Admission is $3 per person. Children 4 and under are free. For more information, call (805) 517-6300. Simi Valley on Friday July Fourth Free Admission!! Sponsored by the Rotary Club. Kids Fun Zone - Food & Crafts Booths Location: Rancho Santa Susana Park 5005 Los Angeles Ave., Simi Valley, CA 93063 Gates Open at 3:00 p.m. 3:30 – 4:00 p.m. Simi Valley Police Department -- K-9 Demonstration 4:00 – 4:30 p.m. Puma Karate Demonstration 4:30 – 5:00 p.m. Polynesian Dance Group (music and dance) 5:00 – 9:00 p.m. The Platinum Groove 8:45 – 9:15 p.m. Patriotic Music and Flag Salute 9:20pm: Spectacular Fireworks Show!!! Bring a blanket, or chairs. Dance, and enjoy the evening.