Join us Sunday morning in OC Parks’ Irvine Ranch...

Enjoy riding in the wilderness on empty trails...

Ready for a workout? Forget the gym for the day...

Enjoy an evening hike through stunning rock...

Curious to learn about the plants among us, who’s...

Red Rock Wilderness Hike atop 20 to 40-million-year-old red rocks and enjoy breathtaking views of the Santa Ana Mountains and beyond at Red Rock Wilderness. Located within OC Parks’ Irvine Ranch Open Space, the 1,500-acre area features more than 8 miles of new trails for hiking, mountain biking and horseback...

Fall - Winter Hours, 7 a.m to 6 p.m. PST Spring - Summer Hours, 7 a.m to 9 p.m. PDT Office Hours: Every other Monday 8 a.m. to 3:30 p.m., Tuesday – Friday 8 a.m. to 4:30 p.m. Please call ahead for staff availability. Office is closed on weekends and...

Fall - Winter Hours, 7 a.m. to 6 p.m. PDT Spring - Summer Hours, 7 a.m. to 9 p.m. PST Office Hours: Monday - Friday 8 a.m. to 3:30 p.m. Park Map Park Brochure Parking fees: $3 per vehicle entry Monday - Friday; $5 Saturday - Sunday; Higher for some...

Historic George Key Ranch is a historic house, museum, garden and orange grove, located in the City of Placentia. This beautifully landscaped site totals 2.2 acres. Located within the park is the George Key home, built in 1898 and listed on the National Register of Historic Places, a collection of...

Fees: No fees collected at this time. Harriett M. Wieder Park features a 4-acre developed park that includes restrooms, a 24-car parking lot, open turf area for picnicking, decomposed granite pathways, outdoor exercise equipment, native plants, and a scenic viewpoint. The park also has a new ADA accessible playground with...