Limestone Canyon is a treasure waiting to be discovered. Join us for an early evening, moderately-paced, 5.5-mile beginning cardio hike. The hike may include a few short rest stops along the way and…

Join us on this beautiful early morning hike passing through Irvine and Santiago Oaks Regional Parks and then crossing into Weir Canyon Nature Preserve, part of Irvine Ranch Open Space. Leaving…

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 Ranch Open Space, you may travel at various…

Join us every Wednesday night in OC Parks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset…

Take in stunning views of the surrounding hillsides and hike atop the iconic red rocks at the newly opened Red Rock Wilderness, part of OC Parks’ Irvine Ranch Open Space.This morning hike will guide…

Spend your morning helping to remove weeds and rebuild berms within the butterfly habitat islands in Limestone. With your help we will be able to maintain “islands” of host and nectar plants for…

Visitors to IRC’s Native Seed Farm are first greeted by our Demonstration Garden, providing inspiration for regionally suitable plant gardens. Our garden hosts a variety of native plant species which…

You will enjoy a gorgeous sunset with panoramic views of Orange County while hiking in OC Parks’ Irvine Ranch Open Space on the paved Hicks Haul Road. This hike travels 6 miles, out and back crossing…

Experienced mountain bikers can explore one of the most rugged and remote areas of OC Parks’ Irvine Ranch Open Space from the trails of Fremont Canyon Nature Preserve on this moderate-paced ride…

Enjoy miles of lush oak studded canyons, fascinating rock formations and sweeping views from the Overlook Trail in the tranquility of the Weir Canyon back country, part of OC Parks’ Irvine Ranch Open…