You will enjoy a gorgeous sunset with panoramic views of Orange County while hiking on the paved Hicks Haul Road in OCParks’ Irvine Ranch Open Space. This hike travels 6 miles, out and back crossing over Loma Ridge. This is the perfect activity for you to get your work-out in and view the sunset. The hike is conducted at an average pace of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level 4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Come explore OCParks’ Irvine Ranch Open Space. This scenic hike involves steep climbs and descents on both double and singletrack trails and around 1100’ of accumulated climbing elevation. Though challenging, the hike rewards you with sweeping views of the Irvine Ranch Natural Landmarks and Santa Ana Mountains. On clear days you can see Catalina Island and even beyond Orange County into the Los Angeles Basin.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Limestone Canyon is a treasure waiting to be discovered. Join us for a moderately-paced, 10.5-mile hike. The hike will include short rest stops along the way as we explore OCParks’ magnificent Irvine Ranch Open Space.  Views of Limestone Canyon, and the surrounding wilderness, from Sandtrap Trail along with a visit to Dripping Springs and the West Sinks will be the highlights of our tour.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level 4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Join Mile Square Regional Park staff and volunteers in enhancing the Nature Area habitat for local wildlife. Activities may include non-native plant removal, planting natives, watering, trash cleanup, and Butterfly Garden maintenance.

No experience is necessary; please bring a hat, sunscreen, snacks, water, wear closed toe shoes and a long sleeve shirt is recommended. Tools are provided. Please arrive on time, as work will begin promptly at 9 am.

Please note, this is a weekly reoccurring activity and space is limited.

• Space is limited and pre-registration is required.
• Minors ages 16 and younger must have a legal guardian present at all times.
• Rain or heat advisories cancel the event.

Mile Square Nature Area Parking Map

As wild habitat disappears, backyard feeders are becoming more and more important for bird conservation. In this fun, family friendly workshop guests will learn the do’s and don’ts of back yard bird feeding, how to turn outdoor space of any size into a wildlife waystation, and get the chance to assemble a DIY bird feeder to take home.

Minors aged 16 and younger must have legal guardian present at all times.

Walk-ins are welcome, but supplies are limited, so registration is suggested.

For more information email nathan.taxel@ocparks.com or call 949-923-2277

Experience the serenity of Bommer Canyon during this moderate-paced hike in the Irvine Open Space Preserve. We’ll experience mature coastal sage scrub and fantastic views overlooking the city of Irvine and the hillsides to the north. This hike is just over 3 miles and includes 700 feet of total climbing elevation with several very steep inclines. The steepest section ascends 300 feet in a quarter-mile. Participants must be in good physical condition.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Come out and join us on a breathtaking hike from the Irvine Open Space Preserve into OC Parks’ Irvine Ranch Open Space. The hike begins in the Agua Chinon wash, continues to The Sinks, and may include a side trip to Box Springs, a natural year-round source of fresh water. Maximum distance is just short of 7 miles, with some sustained climbing in one section. Participants must wear sturdy, closed-toe hiking shoes. Remember to pack plenty of water, sunscreen, a hat, and all other necessary equipment to keep you safe on the trail. This activity originates in the City of Irvine and travels into OC Parks’ Limestone Canyon Nature Preserve.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Join us on this early morning advanced hike with Irvine Ranch Conservancy enjoying parks adjacent to OCParks’ Irvine Ranch Open Space and through beautiful Weir Canyon Nature Preserve. You will go through two parks adjacent to the Landmarks, they are OC Parks managed Regional Parks (Irvine Regional, Santiago Oaks Regional)  We start in Irvine Regional Park, hike over to Santiago Oaks, and finish with a scenic hike down beautiful Weir Canyon. Distance is 8 miles with several steep climbs and descents.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.