Mile Square Regional Park
Fall - Winter Hours, 7 a.m. to 6 p.m. PDTSpring - Summer Hours, 7 a.m. to 9 p.m. PSTOffice Hours: Monday to Friday, 8 a.m. to 3:30 p.m. The Nature Area is open daily from 7 a.m. to 3 p.m.…
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Arden Helena Modjeska Historic House and Gardens
For inquiries or reservations, please contact the South County Historical Parks office at Heritage Hill Historical Park in Lake Forest at 949-923-2230 or heritagehill@ocparks.com.Park…
Peters Canyon Regional Park
Peters Canyon Regional Park closes at sunset, including the parking lot. When visiting the park, please reference the signs in the parking lot indicating the specific time the parking lot will be…
Frequently Asked Questions
Page Last Updated: 12/26/2025
Irvine Ranch Historic Park
Irvine Ranch Historic Park is a 16.5 acre special use park that retains 24 original ranch structures that represent the proud agricultural history of Orange County and, specifically, the Irvine…