Irvine Regional park will be better place for this kind of events Look for OC Parks
I think Irvine regional park is your best be for events. I dont think this park is build for that, especially with rebuilding efforts after the fire.
Orange County Parks and Recreation. Check with them first to see if it's available. Ask specifically for Santiago Oaks Regional Park Ranger Station. They should be able to help.
Check with the Park office.
I would like to be a volunteer for the event. I have a vast amount of knowledge that can help you
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