Activities and Programs

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.

Irvine Ranch Conservancy is committed to providing a safe and respectful environment for all participants, volunteers, and employees. Certain offensive behaviors, including problematic language or attacks based on race, color, religion, national origin, sex, sexual orientation, gender identity or expression, age, disability, or veteran status will not be tolerated. Participating in certain offensive behaviors may lead to dismissal from activities.
    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.

Updated Difficulty Ratings: The Hiking and Fitness Difficulty Ratings have been updated to reflect our current activities. Please click below to read the ratings.

Click here to learn more about IRC-Certified Volunteers.    •   Click here to learn more about the Difficulty Ratings.

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Found 564 Events

Thursday, September 25, 2025

Thursday Morning Trek: Baker Canyon

Hiking & Fitness
Thursday Morning Trek: Baker Canyon

This week in OC Parks’ 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.

Thursday Morning Trek: Baker Canyon
Date:
Thu, 09/25/2025
Time:
7:00 am - 10:30 am
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 09/10/2025
More Information  

Butterfly Series: Limestone Canyon Butterfly Habitat Islands

Stewardship
Butterfly Series: Limestone Canyon Butterfly Habitat Islands

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 butterflies in decline in Limestone Canyon. You will be transported from via a safari style truck from butterfly island to butterfly island through a beautiful oak woodland.

Butterfly Series: Limestone Canyon Butterfly Habitat Islands
Date:
Thu, 09/25/2025
Time:
8:30 am - 11:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 09/10/2025
More Information  

OC Public Library and IRC Nature Storytime Series: Native Plants and Animals on the Irvine Ranch Landmarks

Interpretive
OC Public Library and IRC Nature Storytime Series: Native Plants and Animals on the Irvine Ranch Landmarks

Nature Storytime Experience for Kids and Families

This collaboration between OC Public Libraries and Irvine Ranch Conservancy is an exciting nature experience for the community to learn more about the natural environment surrounding Orange County.

The in-person live discussion includes storybooks, activities, and a craft we begin together.

The Nature Storytime series is about native plants and animals on the Irvine Ranch Landmarks. During this session, we will explore the local native flowers found in the Irvine Ranch Open Space in Orange County.

OC Public Library and IRC Nature Storytime Series: Native Plants and Animals on the Irvine Ranch Landmarks
Date:
Thu, 09/25/2025
Time:
11:00 am - 12:30 pm
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
1
Distance:
0.5 miles
Minimum Age:
All Ages
Family Friendly:
Yes
More Information  

Wildlife Track and Sign Hike at Red Rock Wilderness

Community Science
Wildlife Track and Sign Hike at Red Rock Wilderness

Have you ever come across a mysterious track on a trail and wondered what animal made it? Was it a mountain lion? A deer? A bobcat, gray fox, or even an opossum? Where was it going—and what was it doing?

If you’re curious about the wildlife that moves invisibly around us, join us for a slow-paced, 3-hour Track & Sign Activity that invites participants of all skill levels to engage their senses and connect with nature. This guided hike will cover 2.5 to 3 miles with some elevation gain, taking you through a variety of habitats and up a single-track trail with switchbacks to an overlook point offering spectacular view of the canyon.

Along the way, you’ll learn how to identify animal tracks and signs, and how you can contribute as a citizen scientist to help the Irvine Ranch Conservancy gather important data. This information is critical for protecting both local habitats and the wildlife that depend on them.

Animals leave behind clues—footprints, fur, feathers, and even scat—that reveal who they are and what they’ve been doing. With a bit of practice, you’ll begin to interpret these signs whether you’re hiking, walking on the beach, or gardening in your own backyard.  Come prepared to slow down, look closely, and see the land through a new lens.

Wildlife Track and Sign Hike at Red Rock Wilderness
Date:
Thu, 09/25/2025
Time:
3:30 pm - 6:30 pm
Where:
Red Rock Wilderness
Difficulty Rating:
3
Distance:
2 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 09/10/2025
More Information  

Evening Hike on Hicks Haul Road

Hiking & Fitness
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. 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. Please bring a red-tinted flashlight as the return portion of the hike may be after sunset.

Evening Hike on Hicks Haul Road
Date:
Thu, 09/25/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 09/10/2025
More Information  

Friday, September 26, 2025

Autumn Morning Yoga Hike at Bommer Cattle Camp

Hiking & Fitness
Hiking & Fitness

Join us at Bommer Canyon for an easy two-mile hike through the nature loop and meadow before practicing yoga at the Cattle Camp. This historic old west setting connects us with the history of The Irvine Ranch and the barn’s outdoor stage is perfect for yoga. The hike is highlighted with beautiful views of the canyon, and the yoga is suitable for those with little or no experience. It features basic poses centered on the muscles used for hiking, biking and other sports. Our focus on breath calms the nervous system and has a positive effect on mental, emotional and physical health. Please bring water, a yoga mat plus a large beach towel and wear shoes appropriate for hiking.

Autumn Morning Yoga Hike at Bommer Cattle Camp
Date:
Fri, 09/26/2025
Time:
8:00 am - 10:00 am
Where:
Bommer Canyon Preserve
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
18
Spaces Left:
Registration has closed.
More Information  

Fourth Friday Habitat Restoration in Buck Gully

Stewardship
Fourth Friday Habitat Restoration in Buck Gully

Birds and other wildlife need healthy habitat to thrive. Simple things like planting native plants or removing non-native plants can greatly improve habitat for wildlife. You can be part of that positive impact while enjoying the beauty of Buck Gully near Newport Beach. Come help us with a variety of activities ranging from seed collection to weeding invasive plants.

This activity takes place on sloped terrain and sturdy hiking boots are highly recommended. All training, tools, and gloves will be provided to ensure your safety and comfort. Rattlesnakes are occasionally seen here and generally avoid people, but protective gear will be provided.

Fourth Friday Habitat Restoration in Buck Gully
Date:
Fri, 09/26/2025
Time:
8:00 am - 11:00 am
Where:
Buck Gully Reserve
Difficulty Rating:
3
Distance:
0 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 09/11/2025
More Information  

Growing Together at the Native Seed Farm

Stewardship
Growing Together at the Native Seed Farm

Looking for a way to give back to Nature this Fall? 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! 

Growing Together at the Native Seed Farm
Date:
Fri, 09/26/2025
Time:
8:00 am - 11:00 am
Where:
Native Seed Farm COI
Difficulty Rating:
2
Minimum Age:
8
Spaces Left:
Registration for this event opens at 8:00am on 09/11/2025
More Information  

Baker Canyon Equestrian Ride in Black Star Wilderness Area

Equestrian
Baker Canyon Equestrian Ride in Black Star Wilderness Area

Take a leisurely equestrian ride through beautiful Baker Canyon in the Black Star Wilderness Area, home of oak woodlands, grasslands, and coastal sage scrub.  View evidence of the old ranch days when cattle once roamed the area and see some of the wildflowers that are native to our area.  You will gain amazing views of the local canyons and Irvine Lake.

Baker Canyon Equestrian Ride in Black Star Wilderness Area
Date:
Fri, 09/26/2025
Time:
10:00 am - 2:00 pm
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
11
Spaces Left:
Registration for this event opens at 8:00am on 09/10/2025
More Information  

Jr. Ranger Adventure: Santiago Oaks Regional Park

Interpretive
Jr. Ranger Adventure: Santiago Oaks Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Santiago Oaks Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge. This program will begin outside the Nature Center.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Santiago Oaks Regional Park
Date:
Fri, 09/26/2025
Time:
3:30 pm - 5:00 pm
Where:
Santiago Oaks Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 09/12/2025
More Information  

Saturday, September 27, 2025

Advanced Cardio Hike: Red Rock Wilderness

Hiking & Fitness
Advanced Cardio Hike: Red Rock Wilderness

Join us for a strenuous, extremely challenging, fast-paced, early morning cardio hike in Red Rock Wilderness part of OC Parks’ Irvine Ranch Open Space. Along the way we’ll be rewarded with panoramic views and possible wildlife sightings.  This is an 9-mile cardio hike, completed in 2.5+ hours, includes a 1000+ foot elevation change. This hike is for experienced, physically fit hikers who enjoy the challenge of multiple steep climbs and descents. This hike is much faster than a regular walking hike. We average four (4) miles per hour, fast-paced and is extremely difficult over steep terrain in the wilderness setting.

Advanced Cardio Hike: Red Rock Wilderness
Date:
Sat, 09/27/2025
Time:
6:30 am - 9:00 am
Where:
Red Rock Wilderness
Difficulty Rating:
5
Distance:
9 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 09/12/2025
More Information  

Bird Walk

Interpretive
Bird Walk

Spot local native and seasonal resident birds with Laguna Canyon Foundation Volunteer naturalists on this slow and easy 2-mile hike through a landscaped suburban parkland setting at Mason Regional Park. No experience necessary!

Age: 12 or older. Participants under 18 must be accompanied by a parent or guardian.

Location: Mason Regional Park at 18712 University Drive, Irvine (Exit I-405 at Culver Drive south, turn right (west/south) on University Drive, left at San Joaquin/park entrance – meet at the western end of Parking Lot A).

Parking: $5/car at Mason Regional Park parking lot.

Difficulty Rating: 2/5

Materials: Participants must bring plenty of water, closed-toed shoes, and sun protection. Binoculars are recommended.

Safety precautions and protocols:

Advanced registration required. Every individual, including children, must be registered. Register here.
Group sizes are minimized for safety purposes. For group registrations or questions please email volunteer@lagunacanyon.org
Participants must individually sign a waiver at the beginning of the program. For participants under 18, a parent or guardian must sign the waiver.
To protect all employees, volunteers, and participants, please do not attend if you are not feeling well, have symptoms of illness or have been in contact with someone who was ill.
Contact volunteer@lagunacanyon.org with any questions.

Weather, including high temperatures and wet or muddy trail conditions, may lead to cancellation of this event.

Bird Walk
Date:
Sat, 09/27/2025
Time:
8:00 am - 11:00 am
Where:
Mason Regional Park
Difficulty Rating:
2
Minimum Age:
12
More Information  

Single Tracks of Limestone and Red Rock Wilderness

Mountain Biking
Single Tracks of Limestone and Red Rock Wilderness

If you enjoy riding in the wilderness on empty trails then join us on this mountain bike through Limestone Canyon and the Red Rock Wilderness Parks. This ride is for experienced off-road riders, in excellent cardio shape and that are comfortable with moderate climbs and single track trails.

Single Tracks of Limestone and Red Rock Wilderness
Date:
Sat, 09/27/2025
Time:
8:00 am - 12:00 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
5
Distance:
19 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 09/12/2025
More Information  

Wilderness Access Day: Saddleback Wilderness

Special Events
Wilderness Access Day: Saddleback Wilderness

Access is first come, first served until parking capacity is reached. No registration required.

Equestrians, while space is not guaranteed we encourage you to please email info@irconservancy.org to coordinate parking.

Come explore 3.3 miles of new trails at Saddleback Wilderness, part of OC Parks’ Irvine Ranch Open Space, through this self-guided opportunity.

Located within OC Parks’ Irvine Ranch Open Space, Saddleback Wilderness offers designated trails for self-guided hiking, biking and equestrian use. There are multiple trail loop options which vary in distance and level of difficulty. Choices range from an easy one-mile loop to multiple figure-8 configurations for those looking to maximize their mileage. Regardless of distance, nearly all options feature scenic views including a destination vista point offering 360-degree perspectives from the mountains to the sea.

Saddleback Wilderness is located at 3066 Santiago Canyon Road, Orange, CA.

Wilderness Access Day: Saddleback Wilderness
Date:
Sat, 09/27/2025
Time:
8:00 am - 2:00 pm
Where:
Saddleback Wilderness
Difficulty Rating:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
More Information  

Create in the Park: Drawing Buildings in Perspective

Interpretive
Interpretive

Join OC Parks at Irvine Ranch Historic Park for Create in the Park! Professional artist, Dawn Buckingham, will guide you through understanding simple perspective when drawing or painting buildings, fences, and roads. A demonstration of drawing one of the historic buildings onsite will be included. Oil, acrylic, pastel, watercolor or drawing media are welcome. This program welcomes all who are interested in the arts.

This program is designed for ages 12 and older. Materials are not provided, only art instruction. A list of recommended materials will be made available to all registered participants in advance of the program. Sun protection, water and snacks are recommended.

This program is free with free parking, but reservations are required due to limited parking on-site. To RSVP, visit OCParks.com for more information or contact the park office at 714-973-6865.

Create in the Park: Drawing Buildings in Perspective
Date:
Sat, 09/27/2025
Time:
9:00 am - 12:00 pm
Where:
Irvine Ranch Historical Park
Difficulty Rating:
1
Minimum Age:
12
Spaces Left:
19 of 20
More Information  

Family Hike: Round Canyon

Interpretive
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.

Family Hike: Round Canyon
Date:
Sat, 09/27/2025
Time:
4:00 pm - 6:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Distance:
2.5 miles
Minimum Age:
5
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 09/12/2025
More Information  

Sunset Fitness Hike on Paved Hicks Haul Road: Both Sides of Loma Ridge

Hiking & Fitness
Sunset Fitness Hike on Paved Hicks Haul Road: Both Sides of Loma Ridge

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 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 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.

Sunset Fitness Hike on Paved Hicks Haul Road: Both Sides of Loma Ridge
Date:
Sat, 09/27/2025
Time:
6:00 pm - 8:00 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
6 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 09/12/2025
More Information  

Sunday, September 28, 2025

Ultra Distance Hike: Bommer Canyon

Hiking & Fitness
Ultra Distance Hike: Bommer Canyon

The title says it all. This is your chance to venture deep in the Irvine Open Space Preserve. Join us for a challenging and beautiful adventure. Hiking distance is up to 17 miles and is designed for advanced hikers. Participants must be physically fit and have distance hiking experience. Singletrack trails, steep climbs and descents are numerous on this route, with over 2,800 feet of accumulated climbing elevation. Most months, the route stays in the Irvine Open Space Preserve for its entirety, but will occasionally feature hiking to the sea and back: beginning in Bommer, the hike will head into Crystal Cove State Park, then pass through Laguna Coast Wilderness Park before returning to the Irvine preserve.

Ultra Distance Hike: Bommer Canyon
Date:
Sun, 09/28/2025
Time:
6:30 am - 12:30 pm
Where:
Bommer Canyon Preserve
Difficulty Rating:
5
Distance:
17 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 09/13/2025
More Information  

Moderate Cardio Hike: Weir Canyon Rifle Range Loop

Hiking & Fitness
Moderate Cardio Hike: Weir Canyon Rifle Range Loop

Join us in beautiful Weir Canyon for this moderate paced cardio hike. Along the trail, you’ll pass through coastal sage scrub, grasslands, and oak woodlands where deer and bobcats are frequently observed. Multiple steep climbs and descents, and sweeping views, are included throughout this 6-mile hike. Please make sure you are in excellent physical condition! Even though this is a slower cardio hike, it is faster than a walk. You must be able to hike 3+ miles per hour the entire time without stopping.

Moderate Cardio Hike: Weir Canyon Rifle Range Loop
Date:
Sun, 09/28/2025
Time:
7:00 am - 10:00 am
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 09/06/2025
More Information  

Mountain Bike Clinic: Terrain Skills

Mountain Biking
Mountain Biking

If you are new to mountain biking and interested in getting started the right way, or if you just want to hone your existing skills developing terrain-influenced bike handling over several types of man-made features, this is the clinic for you! The class begins with a brief overview of rider fundamentals starting with platform position and weight transfer then covering equipment basics & setup, braking, gearing and a brief bike maintenance Q&A session followed by a series of exercises demonstrating terrain-influenced bike handling over a variety of man-made features including log piles, rock step-ups, A-frames and many more. These riding techniques will be taught and practiced at the Mountain Bike Skills Development area. This activity originates in the City of Irvine and travels into OC Parks’ Irvine Ranch Open Space.

Mountain Bike Clinic: Terrain Skills
Date:
Sun, 09/28/2025
Time:
7:00 am - 11:00 am
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
2.5 miles
Minimum Age:
16
Spaces Left:
15 of 15
More Information  
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