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.

Search & Filter Activities

Found 642 Events

Monday, September 8, 2025

After Work Fitness Hike on Paved Hicks Haul Road

Hiking & Fitness
After Work Fitness Hike on Paved Hicks Haul Road

Join us every Monday night for a fitness-focused hike on the paved Hicks Haul Road in the Irvine Open Space Preserve. 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 about 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Mon, 09/08/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 08/24/2025
More Information  

Tuesday, September 9, 2025

Tuesday Morning Fitness Hike on Paved Hicks Haul Road

Hiking & Fitness
Tuesday Morning Fitness Hike on Paved Hicks Haul Road

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road in OC Parks’ Irvine Ranch Open Space. This hike allows you to choose between a 3, 6, or 8 mile route, all of which are conducted at the speed of about 3.0 to 3.5 miles per hour. The footing on the asphalt paved road is smoother than dirt roads and single track trails normally found in Limestone Canyon Nature Preserve, but is beginning to show its age with cracks, crevices and an occasional dip. Otherwise, the terrain is smooth, so this is a great walk for anyone who wants a “wilderness experience” without getting dirty! The 6 and 8 mile routes experience two fairly steep ascents and descents. The 3 mile route takes you to the top of Loma Ridge and back down. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer, and lizards are also frequently seen in this area.

Tuesday Morning Fitness Hike on Paved Hicks Haul Road
Date:
Tue, 09/09/2025
Time:
7:30 am - 10:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 08/25/2025
More Information  

Nurturing Oaks in Weir Canyon

Stewardship
Nurturing Oaks in Weir Canyon

Spend the morning in a beautiful oak woodland watering Coast Live Oak seedlings and native plants in Weir Canyon. To get to the planting site we will travel for 15 minutes in a safari style truck giving you majestic views of Weir Canyon. We may be using shovels and small handheld tools. No experience necessary.

Nurturing Oaks in Weir Canyon
Date:
Tue, 09/09/2025
Time:
8:30 am - 11:30 am
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
2
Distance:
5 miles
Minimum Age:
14
Spaces Left:
Registration for this event opens at 8:00am on 08/25/2025
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 Ranch Open Space, 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:
Tue, 09/09/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 08/25/2025
More Information  

Wednesday, September 10, 2025

Open Space Invaders: Invasive Plant Removal at Santiago Creek

Stewardship
Open Space Invaders: Invasive Plant Removal at Santiago Creek

Non-native and invasive plant species are invading our native habitat and open spaces. They aggressively compete with our native plants for resources and spreads rapidly once established. Monitoring, management, and removal of these plant species is an important aspect of land management and habitat restoration.

Help us to manage populations of invasive plants and remove them from the habitat. No previous experience is necessary, just a desire to work outside and get dirty! Snake chaps, gloves, and tools will be provided but please feel free to bring your own if you have them. Please wear long pants, long sleeved shirts, close toed shoes, and protective sun protection. Note: This is a wilderness area, there are natural hazards. Snakes, including rattlesnakes, are occasionally seen here.

Open Space Invaders: Invasive Plant Removal at Santiago Creek
Date:
Wed, 09/10/2025
Time:
8:00 am - 11:00 am
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
3
Distance:
0 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 08/25/2025
More Information  

After Work Fitness Hike on Paved Hicks Haul Road

Hiking & Fitness
After Work Fitness Hike on Paved Hicks Haul Road

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 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Wed, 09/10/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 12:00am on 08/25/2025
More Information  

Thursday, September 11, 2025

Thursday Morning Trek in the Red Rock Wilderness

Hiking & Fitness
Thursday Morning Trek in the Red Rock Wilderness

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 visitors through beautiful hills and valleys to the top of the infamous red rocks and past a model airplane field. Spectacular views of Irvine Lake and the Irvine Ranch Open Space will be enjoyed along the way.

Thursday Morning Trek in the Red Rock Wilderness
Date:
Thu, 09/11/2025
Time:
7:00 am - 10:30 am
Where:
Red Rock Wilderness
Difficulty Rating:
4
Distance:
7.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 08/27/2025
More Information  

Fitness Hike – Ridge Park

Hiking & Fitness
Fitness Hike - Ridge Park

Please be aware this is a Fitness Hike and not for beginners; the pace is approximately a 19-minute mile. Join Laguna Canyon Foundation Volunteers to raise your heart rate and your spirits on this strenuous, moderately paced, 6.6-mile hike over steep and uneven terrain with a 1,100-ft. elevation gain.

Age: 16 or older. Participants under 18 must be accompanied by a parent or guardian.

Location: Ridge Park, Laguna Coast Wilderness Park. Meet at the end of Ridge Park Road/Trail Entrance.

Parking: Free neighborhood parking. Please park legally. Parking is limited, carpooling is encouraged.

Difficulty Rating: 4/5

Materials: Participants must bring plenty of water, closed-toed hiking shoes, and sun protection. Hiking poles 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.

Fitness Hike - Ridge Park
Date:
Thu, 09/11/2025
Time:
8:30 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
4
Minimum Age:
16
More Information  

Little Explorers: Leaves!

Interpretive
Little Explorers: Leaves!

Join OC Park naturalists for story time and short hike with your little ones (ages 3-6) as we explore leaves!

Age: 3-6 year-olds. Participants under 18 must be accompanied by a parent or guardian.

Location: James Dilley Preserve, Laguna Coast Wilderness Park (I-5 or 405 south to 133 south to stoplight at 73 toll road; and make a U-turn, go 1 block. Dilley is on the right.).

Parking: $3/car at James Dilley Preserve parking lot. Parking is limited, carpooling is encouraged.

Difficulty Rating: 1/5

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

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 or shelbi.richardson@ocparks.com with any questions.

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

Little Explorers: Leaves!
Date:
Thu, 09/11/2025
Time:
9:30 am - 10:30 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
1
Minimum Age:
3
More Information  

The Lure and Lull of Limestone Canyon Sand Trap Trail and Dripping Springs

Equestrian
The Lure and Lull of Limestone Canyon Sand Trap Trail and Dripping Springs

Take a leisurely equestrian ride through beautiful Limestone Canyon, part of OC Parks’ Irvine Ranch Open Space, and home of oak woodlands, grasslands, and coastal sage scrub. On a clear day this ride has amazing views of Orange County and Catalina Island. This ride includes an approximate 900 foot climb in elevation. This ride is not an easy one. Horses and rider must be in fit condition.

Equestrians must have their own horse, trail riding experience, and the ability to transport their horse to the staging area. Horses must be fit, able to comfortably ride the distance as described, and be well-behaved in a group. This walking equestrian ride travels on single-track and wide fire roads. It may include a moderate, steady climb. Owners of unshod horses, please note that the footing may include areas of gravel and pavement.

The Lure and Lull of Limestone Canyon Sand Trap Trail and Dripping Springs
Date:
Thu, 09/11/2025
Time:
9:30 am - 1:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 08/27/2025
More Information  

What’s Buzzing at the Native Seed Farm? Native Plants and their Pollinators!

Interpretive
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.

What's Buzzing at the Native Seed Farm? Native Plants and their Pollinators!
Date:
Thu, 09/11/2025
Time:
9:30 am - 11:00 am
Where:
Native Seed Farm OCP
Difficulty Rating:
2
Distance:
1 miles
Minimum Age:
10
Spaces Left:
Registration for this event opens at 8:00am on 08/27/2025
More Information  

Nature Hike at Gypsum Canyon Wilderness

Hiking & Fitness
Nature Hike at Gypsum Canyon Wilderness

Explore the beauty of OC Parks’ Irvine Ranch Open Space on a 3–4.5 mile guided hike through Gypsum Canyon Wilderness. We’ll begin along the Oven Canyon Trail, passing through mixed habitats, and then ascend a single-track trail with switchbacks leading to three scenic overlook points offering spectacular views of Orange County.

This hike includes an elevation gain of approximately 500 feet and maintains an average moving pace of 3 miles per hour.

Please come prepared with:

  • Water (each hiker must carry their own)

  • Sunscreen and a hat

  • Sturdy, closed-toe hiking shoes

  • Any personal gear needed to stay safe and comfortable on the trail

Participants must be capable of completing the full distance with elevation gain. We look forward to seeing you on the trail!

Nature Hike at Gypsum Canyon Wilderness
Date:
Thu, 09/11/2025
Time:
4:00 pm - 7:00 pm
Where:
Gypsum Canyon Wilderness
Difficulty Rating:
3
Distance:
Variable
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 08/27/2025
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, 09/11/2025
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 08/27/2025
More Information  

Friday, September 12, 2025

Butterfly Garden Site Prep

Stewardship
Stewardship

Join us at Santiago Oaks Regional Park to lend a hand by helping OC Parks staff prepare for a new butterfly garden! We will be removing invasive species, cleaning up excess debris, trimming large shrubs and preparing the area for new plantings of native species.

The new butterfly garden site is located next to the Santiago Oaks Nature Center. General purpose gardening gloves and long pants are recommended. Tools and gloves will be available on-site.

The program and parking are free for volunteers. Please notify the park attendant you are volunteering when you arrive. Bring plenty of water, sunscreen and snacks. The program will begin at the Nature Center.

This is a Level 2 difficulty rating for habitat restoration.

Advance registration required.

For questions, please contact Resource Specialist Shelly Marshall at 657-253-3681 or shelly.marshall@ocparks.com.

Butterfly Garden Site Prep
Date:
Fri, 09/12/2025
Time:
7:30 am - 9:30 am
Where:
Santiago Oaks Regional Park
Difficulty Rating:
2
Minimum Age:
10
Spaces Left:
Registration for this event opens at 12:00am on 08/28/2025
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 Summer? 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, 09/12/2025
Time:
8:00 am - 11:00 am
Where:
Native Seed Farm OCP
Difficulty Rating:
2
Minimum Age:
8
Spaces Left:
Registration for this event opens at 8:00am on 08/28/2025
More Information  

Summer 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.

Summer Morning Yoga Hike at Bommer Cattle Camp
Date:
Fri, 09/12/2025
Time:
8:00 am - 10:00 am
Where:
Bommer Canyon Preserve
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 08/28/2025
More Information  

Saturday, September 13, 2025

Mountain Bike Ride at Fremont and Weir Canyons to Sierra Peak

Mountain Biking
Mountain Bike Ride at Fremont and Weir Canyons to Sierra Peak

Join us in OC Parks’ Irvine Ranch Open Space for a challenging docent-led mountain bike ride for very experienced off-road riders in excellent cardio shape through Fremont and Weir Canyons to Sierra Peak.

We will climb out of Irvine Regional Park on Coal Mine Road to the Fremont Canyon Weather Station and then continue on past the Tecate Cypress grove, Lizard Rock and Mini-Moab on the way to Sierra Peak . We will return to the staging area via much of the same route but will finish by riding through Upper Blind Canyon to Weir Canyon.

Mountain Bike Ride at Fremont and Weir Canyons to Sierra Peak
Date:
Sat, 09/13/2025
Time:
7:00 am - 12:00 pm
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
5
Distance:
25 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 08/29/2025
More Information  

Restoration Day

Stewardship
Stewardship

Lend a helping hand to improve native habitat at Peters Canyon Regional Park. Dedicate the morning to caring for restoration sites and help our native plants and shrubs thrive. Be prepared for weeding, watering or planting as needed.

Strong gardening gloves, trail snacks, water, sun protection and wearing clothes you don’t mind getting dirty are highly recommended.

The program and parking are free. Parking passes will be made available to volunteers at check-in. The program will begin in the parking lot and will proceed to the restoration site. Be prepared to hike a moderate distance with tools.

Advance registration required.

For questions, please contact Resource Specialist Shelly Marshall at (714) 973-6625 or shelly.marshall@ocparks.com.

Restoration Day
Date:
Sat, 09/13/2025
Time:
7:30 am - 9:30 am
Where:
Peters Canyon Regional Park
Difficulty Rating:
2
Minimum Age:
10
Spaces Left:
Registration for this event opens at 12:00am on 08/30/2025
More Information  

Animal Signs and Tracks in Agua Chinon

Interpretive
Animal Signs and Tracks in Agua Chinon

Come search for evidence that animals leave behind in OC Parks’ Irvine Ranch Open Space. Mule deer, bobcats, coyotes and even mountain lions call this hidden canyon home. Gain the basic tracking techniques as we search for evidence such as tracks, fur, bones, homes, and even scat. You never know what you may find! Please wear comfortable clothes and shoes that you do not mind getting a little dusty. This program is focused on older children and adults.

Animal Signs and Tracks in Agua Chinon
Date:
Sat, 09/13/2025
Time:
8:00 am - 11:00 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
2
Distance:
3 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 08/29/2025
More Information  

Land Tending – Berns Canyon Preserve

Stewardship
Land Tending - Berns Canyon Preserve

Join Laguna Canyon Foundation at one of our Land Tending days in Berns Canyon Preserve as we learn and work together to create a healthier habitat for the native plants and wildlife that call the canyon their home. Depending on the time of year, volunteers will assist with various stewardship activities, including removal of non-native plants, hand watering, seed collection, and/or planting of native plants. No experience is necessary. Come out and join the team to help restore the wild lands we all enjoy!

Age: 16 or older. Participants under 18 must be accompanied by a parent or guardian.

Location: Laguna Canyon Foundation Headquarters (10 Phillips St. Laguna Beach, CA 92651, West side of highway 133)

Parking: Free parking for Land Tending volunteers at LCF Headquarters. Parking is limited, carpooling is encouraged.

Difficulty Rating: 2/5

Materials: Participants must bring plenty of water, closed-toed shoes, long pants, and sun protection. Gloves and tools are provided. Long sleeves 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 or marjorie@lagunacanyon.org with any questions.

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

Land Tending - Berns Canyon Preserve
Date:
Sat, 09/13/2025
Time:
8:00 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
16
More Information