May 6, 2016
7:00 AMLoop Hike: Limestone Canyon

Enjoy a brisk, half-day loop hike through Limestone Canyon Nature Preserve. This hike offers sweeping views of Orange County and the Santa Ana Mountains, and includes multiple steep climbs and descents.

  • Pre-registration is required.
  • Driving directions will be provided after registration.
  • For more events in Limestone Canyon, click here.
May 6, 2016
10:00 AMEquestrian Ride: Discover the Historical Wonders of Weir Canyon

Travel through Weir Canyon by horse along a trail that weaves its way through a beautiful oak woodland inhabited by deer, coyote, bobcats and many different birds. Equestrians who have trail-riding experience with their own fit and able horse are welcome.

  • Pre-registration is required.
  • Driving directions will be provided after registration.
  • For more events in Weir Canyon Nature Preserve, click here.
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Latest News

News ImageMay 6, 2016  New East Sinks Viewing Deck Opens in Limestone CanyonThe new East Sinks Viewing Deck, which boasts stunning vistas of Orange County’s very own “mini Grand Canyon,” is now open for visitors after a ribbon-cutting ceremony May 3 in OC Parks’ Limestone Canyon Nature Preserve. Orange County Supervisor Todd Spitzer and OC Parks staff were joined by hikers, mountain bikers, equestrians, and Irvine Ranch Conservancy staff and volunteers in dedicating the new deck, which is the second platform overlooking The Sinks.
News ImageApril 19, 2016  Ladera Ridge Habitat ProtectionSignificant traffic on unauthorized trails has caused damage in the Ladera Ridge (Las Flores) area of the park. This area is closed, and in the interest of protecting the valuable natural resources found on both County and the Rancho Mission Viejo Reserve, measures will be taken to prevent further destruction.
News ImageFebruary 19, 2016  Nature Trail Loop, Oak Trail and Dick Loskorn Trail Closures

The Nature Trail Loop, Oak Trail and Dick Loskorn Trail have been closed for your safety until further notice.

The trails contain many dead and dying oak and sycamore trees as a result of continuing drought conditions. These trees pose a serious threat to all trail users.

Closing these trails serves two purposes. In addition to keeping visitors away from hazards, the closures offer the best chances for the groves to recover.

Other hiking trail options in this area include the eastern section of Nature Trail Loop, Bell CanyonTrail, Quail Run Trail, Star Rise Trail, and West Ridge Trail.

February 10, 2016  Extended Park Hours Begin March 13Starting Sunday, March 13, the spring-summer hours for regional parks are 7 a.m. to 9 p.m. That includes Carbon Canyon, Clark, Craig, Laguna Niguel, Mason, Mile Square and Yorba regional parks. Irvine Regional Park opens at 6 a.m. and will close at 9 p.m. Wilderness parks are open at 7 a.m. and close at sunset year round.