Is Irvine Regional Park in Irvine? No. OC Parks lists Irvine Regional Park at 1 Irvine Park Rd., Orange, CA 92869, and the County of Orange runs it, not the City of Irvine. The park is named for James Irvine, who gave the county its original 160-acre oak grove in 1897 for $1.
If you've ever plugged "Irvine Regional Park" into a map from Woodbridge or Northwood and been surprised by the drive, you're in good company. Even the City of Irvine's own website lists the park at 1 Irvine Park Road in Orange. A park's name tells you who it honors. It doesn't tell you which city it's in, and in Orange County that works in both directions.
Why a park in Orange carries the Irvine name
The name goes back to a gift. According to the OC Parks history page, "On Oct. 5, 1897, James Irvine gifted the land to the County of Orange for just $1." The Orange County Board of Supervisors formally accepted it on Oct. 11, 1897.
That original gift was a 160-acre oak grove, and it opened under a name that gave nothing away about Irvine at all: "Orange County Park." The county officially renamed it "Irvine Park" in 1928 in honor of the donor. Much later, a 2014 Irvine Company donation added 16 acres, which OC Parks says brought the park "to its present size of 495 acres."
When the park turned 125 in October 2022, OC Parks published an anniversary release describing the 1897 gift as the creation of "California's first regional park."
What you'll find at Irvine Regional Park
The OC Parks listing describes a 495-acre park set in "a grove of heritage Oak and Sycamore trees," with Santiago Creek running through it. It's also home to the OC Zoo and the Irvine Park Railroad. The amenity list adds fishing, picnic areas, bike rentals, paddle boat rentals, pony rides, equestrian and hiking trails, and boarding stables.
Practical details from OC Parks:
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Address: 1 Irvine Park Rd., Orange, CA 92869
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Phone: 714-973-6835
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Hours: 6 a.m. to 6 p.m. in fall and winter; 6 a.m. to 9 p.m. in spring and summer
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Vehicle entry: "$3 per vehicle entry Monday - Friday; $5 Saturday - Sunday; Higher for some holidays and events."
A planning note, not a park rule: because the closing time shifts with the season and fees can rise on holidays and event days, it's worth pulling up the OC Parks page the morning of a weekend or holiday trip.
The mirror-image mix-up: a county park inside Irvine
The confusion runs the other way, too. The City of Irvine's County Parks page says, "County-owned parks within the City of Irvine include William R. Mason Regional Park and portions of the Irvine Ranch Open Space."
So Mason Park is physically in Irvine but run by the county. OC Parks lists it at 18712 University Drive, Irvine, CA 92612, and describes 339 acres with a 9-acre lake and a 123-acre wilderness and natural area. Hours are 7 a.m. to 6 p.m. in fall and winter and 7 a.m. to 9 p.m. in spring and summer, with the same $3 weekday and $5 weekend vehicle fee as Irvine Regional Park.
Its name doesn't point to the city either. According to Wikipedia, the park honors William R. Mason, who was president of the Irvine Company from 1966 until his death in 1973. The park's first phase opened that same year.
The big green spaces the City of Irvine actually runs
If you're looking for parks that belong to the city, two are hard to miss.
Orange County Great Park. Despite "Orange County" in its name, the City of Irvine describes the Great Park as "City-owned," with a project area of approximately 1,300 acres on the former Marine Corps Air Station El Toro. The city says a separate 688-acre area is being developed through a public-private partnership with FivePoint.
The City of Irvine Open Space Preserve. The city says its Open Space Preserve grew out of the 1988 Open Space Initiative approved by voters and covers approximately 8,000 acres of preserved habitat. The city partners with the Irvine Ranch Conservancy, a nonprofit founded in 2005, to manage public access. City pages name Quail Hill, Bommer Canyon Preserve, Shady Canyon and Orchard Hills among Irvine's open space areas.
Beyond those, the city's Irvine's Park System page counts 22 community parks and 40 neighborhood parks. It also says about 16,000 acres of parks, trails and wilderness will be permanently protected at buildout, which is more than one-third of the city.
A quick sorter for the names that trip people up
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City of Irvine parks: Orange County Great Park, the City of Irvine Open Space Preserve (including Quail Hill and Shady Canyon), plus 22 community parks and 40 neighborhood parks.
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County parks inside Irvine: William R. Mason Regional Park and portions of the Irvine Ranch Open Space.
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County park with an Irvine name outside Irvine: Irvine Regional Park, which has an Orange address.
Before you head out
The owner matters once you arrive. County parks like Irvine Regional Park and Mason Regional Park charge a vehicle entry fee and follow OC Parks hours and rules.
City open space works differently, and access varies from one area to the next. The city says Quail Hill has trails open dawn to dusk for self-guided visits, while Shady Canyon can only be visited on guided activities. For other preserve areas, the city's Open Space Preserve page is a good place to start before you lace up.
Related reading
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How to ride Irvine bike trails with kids, from route maps to the new JOST bridge
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What to know before your first show at Irvine Barclay Theatre