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Park Rules
Consumption of intoxicants prohibited.A speed limit of 10 MPH enforced at all times.Vehicle operations restricted to designated roads.Fires are permitted only in fireplaces and approved camp stoves.…
ONeill Regional Park
Day Use: Open year-round 7 a.m. to sunset.Trails: Closed for three days following rain.Camping: Year-round, check-out at 12 p.m., check-in at 2 p.m.,Office hours: 7 a.m. to 8 p.m. dailyParking fees (…
History
During the past 15,000 years the Gabriolino mission indian tribe, or "Tongva" used this area of hills and valleys for hunting and gathering.In the late 1800's oil was discovered in the Brea area. Oil…
Park Amenities
Dogs Permitted
Interpretive Center
Interpretive Programs
Two locations in the park are offered for weddings: the historic St. George's Episcopal Mission (capacity 75) and an outdoor…
Historic Sites
Arden: Helena Modjeska Historic House and Gardens
Heritage Hill Historical Park
Irvine Ranch Historic Park
George Key Ranch Historic Park
Old Orange County Courthouse
Ramon Peralta Adobe…
OC Zoo Improvement Project
New Large Mammal Exhibit
New Large Mammal Exhibit at OC Zoo Now Open
May 2022 -- A new large mammal exhibit at the OC Zoo in Irvine Regional Park opened to the public May 13 and…
Park Amenities
Amphitheater
Bicycling/Bike Trails
Classroom
Dogs Permitted: Dogs must be on a leash at all times.
Equestrian Trails
Gift Shop
Hiking Trails
Interpretive Center: Peter and Mary…
Mile Square Regional Park Archery Range
The archery range at Mile Square Regional Park is available to the public, free of charge. The 6.7-acre range features 24 shooting lanes beneath a continuous shade structure, targets, bow racks,…
Park Web Links
Laguna Canyon Foundation: Laguna Canyon Foundation, volunteering and helping to preserve, protect and enhance the South Coast Wilderness. 949-497-8324
Aliso and Wood Canyons Wilderness Park…