The Irvine Ranch Natural Landmarks received national recognition in 2006 when protected land on the former Irvine Ranch was singled out for its rare biological and geological features through designation as a National Natural Landmark.

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. During this hike in the Irvine Open Space Preserve, you may travel at various hiking speeds based on your comfort level. This out-and-back program travels 3.5 miles round trip up to scenic Loma Ridge and back down.

Click on any of the areas on the right to find out more about the land. Exciting opportunities are available for you and your family without traveling far. Choose your adventure and discover the wonders of nature.

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. During this hike in the Irvine Open Space Preserve, you may travel at various hiking speeds based on your comfort level. This out-and-back program travels 3.5 miles round trip up to scenic Loma Ridge and back down.

OC Parks encompasses regional, wilderness and historical facilities, as well as coastal areas throughout the County of Orange in California. Featuring 60,000 acres of parkland, open space and shoreline, Orange County’s award-winning parks and programs are enjoyed by millions of residents and visitors each year, in ways as diverse as the parks themselves.

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Spring Babies In spring, baby critters are out exploring the Irvine Ranch Natural Landmarks. For the Birds A variety of native birds captured throughout the Irvine Ranch Natural Landmarks, including owls, hawks, eagles, hummingbirds and more.

The City of Irvine Open Space Preserve provides countless ways to connect with nature and enjoy outdoor adventures without traveling far, including hiking, mountain biking, equestrian programs, and naturalist-led tours.

Travel short distances when first starting out, and travel at a kid’s pace. Do not rush the experience. If hiking with two or more children, offer different duties for each child, such as line leader, bird watcher, animal tracker, or binocular holder.

2/6 (Thu) — CANCELLED due to Trail Conditions: Moving with Nature in Mind - Twilight Yoga at the Farm 2/6 (Thu) — CANCELLED due to Trail Conditions: Evening Hike on Hicks Haul Road 2/7 (Fri) — CANCELLED due to Trail Conditions: Early Morning Hike to The Sinks: Limestone Canyon 2/7 (Fri) — CANCELLED due to Trail Conditions: Bommer Canyon Exploration Day