The activities below are offered by a variety of organizations and their dedicated volunteers. All programs are FREE unless noted below. Programs led by IRC-Certified Volunteers require pre-registration, which closes at 4 p.m. on the day prior to the event. No walk-up registrations will be permitted for these events. For policies of other organizations, please use the sign-up information provided. For mobility device policies click here.
Note: Minors must be accompanied by a parent or guardian for these events. For programs requiring online registration, each adult and child must be registered. |
Need help? For the fastest answers, look for organization-specific contact information in each event listing (click More Information for full listing). If no contact information is listed, email info@irconservancy.org for assistance.
Click here to learn more about IRC-Certified Volunteers. • Click here to learn more about the Difficulty Ratings.
Wednesday, May 17, 2023
After Work Fitness Hike on Paved Hicks Haul Road

Join us every Wednesday night in OCParks’ 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 views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average 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. Most participants finish the route in about 1 hour. 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-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Thursday, May 18, 2023
Distance Hike: Bommer Canyon

Take a break and get some fresh air! Join us on a mid-week hike through Bommer and Shady Canyons. This program is for those who just want to get out and hike away the stresses of the week. Enjoy the views and a little quiet time in Irvine’s beautiful Open Space Preserve. Several single-track trails, steep climbs and descents are part of the experience. There is over 2200 ft. of climbing elevation accumulated along the route, but it is done with a moderate pace, approximately 3 mph. Distance is 10-12 miles. Bring plenty of water (100 oz. minimum recommended) and wear comfortable, sturdy shoes. We will be meeting at the Bommer Canyon Cattle Camp.
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.
Thursday Morning Trek: Baker Canyon

This week in OCParks’ Irvine Ranch Open Space, we’ll hike in Baker Canyon. This scenic hike includes steep climbs and descents on both single and double-track trails with about 1100 feet of accumulated climbing. We will enjoy sweeping views of the Irvine Ranch Natural Landmarks and the Santa Ana Mountains. On clear days, we can see Catalina Island and even beyond into the Los Angeles Basin. Please wear hiking shoes/boots and bring water, a trail snack, sun screen, hat, and any other necessary equipment to keep you safe on the trail. Participants must be able to hike 7 miles with an elevation gain of 1100 feet at an average moving rate of 3 miles per hour. Each hiker must carry their own water and supplies.
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.
What’s Buzzing at the Native Seed Farm? Native Plants and their Pollinators!

Join us as we explore the native seed farm while learning about plants, pollination, and pollinators. We’ll focus on the native plants grown at the farm as we talk about, and identify, the pollinators we find on them.
Closed-toe shoes and water are required for the walk. Hats and sunscreen highly recommended.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Equestrian Ride: Discover The Natural Wonders Of Weir Canyon

Be prepared to experience the beauty and wonder of Weir Canyon, part of OCParks’ Irvine Ranch Open Space, steeped in history and lore, on this morning equestrian ride. The ride will travel through Weir Canyon, where the trail weaves its way through a beautiful oak woodland inhabited by deer, coyote, bobcat, and many different birds. You will travel the route of the Butterfield Stage and see a monument dedicated to the Mexican ox cart drivers. If time permits, we will climb to the Two Tower vista point to look at distant views. This ride travels on wide trails with several easy to moderate climbs. Equestrians who have trail riding experience and their own fit and able horse are welcome. You will need to transport your horse to the staging area. Owners of unshod horses, please note that footing will include areas of gravel and distances over asphalt pavement. Please bring water on the ride.
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.
Twilight Beginner Cardio Hike in Limestone Canyon

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 will be a great introduction to fitness, cardio-style hikes as well as OCParks’ magnificent Irvine Ranch Open Space. Views of Limestone Canyon, and the surrounding wilderness, from Limestone Ridge will be the highlight of our tour.
Please bring a minimum of 48 oz. water. Come prepared with a pack, sturdy closed-toed hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail for this beginner cardio-paced (3-3.5 mph with very few stops) hike in a wilderness area. Each participant must carry his or her own pack and water. Under-prepared participants may be denied access to this program.
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.
Evening Hike on Hicks Haul Road

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. This hike in the Irvine Open Space Preserve is done at an easy walking pace. This out-and-back program travels 3.5 miles round trip to scenic Loma Ridge and back down. Please bring a red-tinted flashlight as the return portion of the hike may be after sunset.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Friday, May 19, 2023
Better Birding Basics: Birds of Limestone Canyon

This is the time of year when Lazuli Buntings, Black-headed Grosbeaks, Ash-throated Flycatchers and Orioles are arriving for the summer. Some may be breeding in Limestone Canyon. We may also see newly fledged raptors. Please wear sturdy shoes suitable for hiking, along with sun protection such as a hat and sunscreen. Bring your binoculars, or borrow ours.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land.
Morning Yoga Hike in Baker Canyon

Enjoy a 3+ mile hike and gentle yoga practice in nature. The hike through Baker Canyon, part of OCParks’ Irvine Ranch Open Space, includes some elevation and will be a nice warm up for a gentle morning yoga flow under a shaded canopy. Please bring water, your own yoga mat and large beach towel. Mats will not be provided; we will drop mats at secure location while hiking. Closed-toe shoes, water, hats and sunscreen recommended for the hike.
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.
Wild Tales

Wild Tales is back!
Wild Tales will be offered every Friday. Each session will include a kid friendly hike, story time and craft project.
Activities are designed for ages 2-4 but all are welcome.
All minors under 16 must be accompanied by a guardian at all times.
Being that our easy hikes are on dirt trails, wearing clothes and shoes fit for such trail conditions are recommended.
Rain or heat advisory will cancel the event.
Starry, Starry Night

Come join us for an interactive evening under the stars. Immerse yourself in a scaled-down version of our solar system. Test your imagination in naming the constellations. Reenact the struggle between Orion and the Scorpion. The hike will average 2-3 miles round trip at an easy pace with a high level of interpretation. This program is for participants who would like a slower-paced hike. Wear comfortable clothes and sturdy shoes and bring water for the hike. This activity is designed with kids ages 5 – 12 in mind but, everyone is welcome.
Please review the Difficulty Ratings on the banner above before registering. Understanding the 1-through-5 ratings system will help you evaluate your readiness to participate in this level-2 activity on the land.
Saturday, May 20, 2023
Explore Weir Canyon: Animal Signs and Tracks

Come join us as we hike 5 miles through the lovely Weir Canyon, part of OCParks’ Irvine Ranch Open Space. Before our hike starts a brief introduction to animal tracks and scats will be given. Along our journey, we will be looking for any signs animals might have left behind for us to find. Tracks, scats, and other signs are out there waiting for us to find them!
Please come prepared with plenty (50 oz) of water, closed-toe shoes, and a sturdy hiking backpack. 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.
Slow-paced Mountain Bike Ride – Limestone Canyon

Enjoy the relaxation of riding in the wilderness on empty trails. Join us on this docent-led mountain bike ride through Limestone Canyon, part of OCParks’ Irvine Ranch Open Space. We will visit Dripping Springs which is a fern covered, year-round source of water for the local wildlife. The ride will also stop at the west viewing deck for the Sinks. This is a slow-paced ride designed for the beginner that has experience riding fire roads such as Limestone Canyon or Telegraph Canyon but wants to develop their climbing and riding abilities. The ride can also be enjoyed by more advanced riders looking for a relaxed ride in a beautiful setting.
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. Motorized recreation vehicles of any class or type are not permitted for use in the Nature Preserve.
Wilderness Access Day: Bommer Canyon

Enjoy self-guided access in the southern portion of Irvine’s Open Space Preserve. The entire southern Open Space Preserve trail network will be open for self-guided hiking and biking from 8 am to 2 pm. This includes the single-tracks in Shady Canyon and Bommer Canyon that are reserved for guided activities only. Registration is not required for this event, though it is shown on the website. If you need driving directions, please use the online registration to receive a map and instructions for getting to Bommer. The Bommer Canyon Cattle Camp will be available for parking, but please take note that your vehicle must be removed from the Cattle Camp area by 2 pm.
Special Notice: Parking at the Bommer Canyon Cattle Camp is extremely limited due to ongoing construction and will be available on a first come-first serve basis. Additional parking may be available at the Bommer Canyon Trailhead and Turtle Rock Community Park. Alternate parking options also include the Quail Hill Trailhead, Quail Hill Community Center and Laguna Coast Wilderness Park.
Growing Together at the Native Seed Farm

Looking for a way to give back to Nature this Winter? Come help us behind the scenes at the Irvine Ranch Conservancy’s one-of-a-kind Native Seed Farm in Irvine! Every day at the farm is different; depending on the needs of the farm we will be harvesting seeds from beautiful native plants, planting new seeds in the annual plots, working in our native plant demo garden, or tending to younger seedlings in our nursery.
Working with us at the Native Seed Farm is a great way to grow your community and cultivate knowledge about local plant and wildlife! Absolutely no experience or special equipment required!
Reviewing the 1-5 Difficulty Ratings will help you evaluate your readiness to participate in this Level 2 activity. Activities may include bending, stooping, crouching, squatting, long periods of standing, reaching, pulling, grabbing, and pushing.
Please note our Minors Policy for all public activities: All minors (under 18 years of age) must be accompanied by their respective parent or legal guardian. Both parent and their accompanying minor(s) must be registered for the Irvine Ranch Conservancy led activity they wish to attend.
Family Hike: Round Canyon

Enjoy nature with friends and family in Round Canyon. We hike along a fairly flat trail as we watch for red-tailed hawks and mule deer. This activity originates in the City of Irvine and travels into OC Parks’ Irvine Ranch Open Space. The hike averages 2-3 miles round trip at an easy pace with a medium level of interpretation. This program is for participants who would like a slower-paced and level hike. Wear comfortable clothes and sturdy shoes, and bring water for the hike.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.