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

Saturday, February 22, 2025

Family Hike: Baker Canyon

Interpretive
Family Hike: Baker Canyon

Enjoy an afternoon family hike in Baker Canyon, part of OC Parks’ Irvine Ranch Open Space. We will hike along a flat trail as we watch for red-tailed hawks and mule deer. The hike will average 2 miles round trip at an easy pace with a medium level of interpretation. This program is for participants who would enjoy a slower-paced and level hike. Wear comfortable clothes and sturdy shoes and bring water for the hike.

Family Hike: Baker Canyon
Date:
Sat, 02/22/2025
Time:
3:00 pm - 5:30 pm
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
5
Family Friendly:
Yes
Spaces Left:
Registration has closed.
More Information  

Jr. Ranger Adventure: Monitoring Mason Regional Park’s Turtles

Interpretive
Jr. Ranger Adventure: Monitoring Mason Regional Park’s Turtles

Earn yourself a William Mason Regional Park Jr. Ranger Badge by completing this Jr. Ranger adventure! We will be learning about what makes an animal invasive and watching the behavior of Mason’s turtles.

Age: Designed for 8 to 12 years of age, but all are welcome to participate. 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. Parking is limited, carpooling is encouraged.

Difficulty Rating: 2/5

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.

Jr. Ranger Adventure: Monitoring Mason Regional Park’s Turtles
Date:
Sat, 02/22/2025
Time:
3:00 pm - 4:30 pm
Where:
Mason Regional Park
Difficulty Rating:
2
Minimum Age:
8
More Information  

Sunday, February 23, 2025

Sunday Fitness Hike at Hicks Haul

Hiking & Fitness
Sunday Fitness Hike at Hicks Haul

Join us Sunday morning in OC Parks’ Irvine Ranch Open Space for a fitness-focused hike on the Hicks Haul Road, West Loma and Shoestring trails in Limestone Canyon. Hikers will enjoy wonderful views and a panoramic overview of Orange County. The hike starts at Hicks Haul Road staging area and will cover a distance of 8 miles, about 5 miles of the hike is on paved surface and rest on trails. Participants are expected to hike close to 3 miles per hour and come prepared with closed toe hiking boots or shoes, water, trail snacks, sunscreen, hat, day pack or fanny pack, and any other necessary equipment or supplies you might need to keep you safe on this hike.

Sunday Fitness Hike at Hicks Haul
Date:
Sun, 02/23/2025
Time:
7:00 am - 10:00 am
Where:
Loma Ridge Nature Preserve
Difficulty Rating:
4
Distance:
8.5 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Bommer Canyon East Fork and Ridge Route Loop Hike

Hiking & Fitness
Bommer Canyon East Fork and Ridge Route Loop Hike

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.

Bommer Canyon East Fork and Ridge Route Loop Hike
Date:
Sun, 02/23/2025
Time:
7:30 am - 10:00 am
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
7 of 20
More Information  

CANCELLED: Land Tending – Laguna Coast

Stewardship
CANCELLED: Land Tending - Laguna Coast

Join Laguna Canyon Foundation and OC Parks at one of our Land Tending days in Laguna Coast Wilderness Park 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 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 or marjorie@lagunacanyon.org with any questions.

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

CANCELLED: Land Tending - Laguna Coast
Date:
Sun, 02/23/2025
Time:
8:00 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
16
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:
Sun, 02/23/2025
Time:
8:00 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
16
More Information  

Mountain Bike Clinic: Terrain Skills

Mountain Biking
Mountain Bike Clinic: Terrain Skills

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, 02/23/2025
Time:
8:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
2.5 miles
Minimum Age:
16
Spaces Left:
11 of 15
More Information  

Weekly Nature Area Clean Up

Stewardship
Weekly Nature Area Clean Up

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. Please park in Parking Lot H and walk to the volunteer shed west of the overflow lot entrance.

• 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

Weekly Nature Area Clean Up
Date:
Sun, 02/23/2025
Time:
9:00 am - 11:00 am
Where:
Mile Square Regional Park
Difficulty Rating:
1
Minimum Age:
12
Spaces Left:
Registration has closed.
More Information  

CANCELLED due to Trail Conditions: Equestrian Ride: Exploring the Natural Wonders of Weir Canyon and the Overlook Trail

Equestrian
CANCELLED due to Trail Conditions: Equestrian Ride: Exploring the Natural Wonders of Weir Canyon and the Overlook Trail

Be prepared to experience the beauty and wonder of Weir Canyon, part of OC Parks’ Irvine Ranch Open Space, including the beautiful views from the Overlook Trail.  This ride will travel through Weir Canyon, where the trail weaves its way through a beautiful oak woodland inhabited by deer, coyotes, bobcats, and a variety of native birds. You will travel the route of the Butterfield Stagecoach and see a monument dedicated to the Mexican Ox Cart drivers. We will continue our ride through coastal sage scrub over large rock formations past oak woodlands and up the Overlook Trail. On a clear day, we will be rewarded with sweeping views of the Irvine Ranch Natural Landmarks and more distant views of the Palos Verdes Peninsula, Los Angeles Basin, and Cleveland National Forest.

The participant’s horse must be able to ride 9+ miles with an accumulated elevation gain of 1800 feet.

CANCELLED due to Trail Conditions: Equestrian Ride: Exploring the Natural Wonders of Weir Canyon and the Overlook Trail
Date:
Sun, 02/23/2025
Time:
10:00 am - 2:00 pm
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
4
Distance:
9.5 miles
Minimum Age:
18
Spaces Left:
10 of 10
More Information  

Photo Journey Limestone Canyon: The Sinks, Loma Ridge Backcountry and Sunset

Interpretive
Photo Journey Limestone Canyon: The Sinks, Loma Ridge Backcountry and Sunset

Join us in the back-country wilderness for a journey filled with beautiful sights that are photographic and artistic sketching opportunities. Our journey begins in the afternoon. We will be deep in a secluded canyon, where time is measured in centuries, even millennia, in the sandstone cliffs of this ancient place called Limestone Canyon. You will board a 4-wheel drive vehicle for a 13-mile tour of the canyon and hills surrounding it. We will stop frequently for 15-30 minutes to admire the views, take photos, sketch landscapes, and answer questions.

Photo Journey Limestone Canyon: The Sinks, Loma Ridge Backcountry and Sunset
Date:
Sun, 02/23/2025
Time:
2:00 pm - 6:00 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
2
Distance:
16 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Family Hike

Hiking & Fitness
Family Hike

Join Laguna Canyon Foundation Volunteer naturalists in partnership with OC Parks to enjoy an easy, 2.5-mile Family Hike over moderate but uneven terrain (45-ft. elevation gain). Starting at the James Dilley Preserve, we will hike one of the most diverse areas of Laguna Coast Wilderness Park to Barbara’s Lake and back.

Age: 6 or older. 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: 2/5

Materials: Participants must bring plenty of water, closed-toed 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.

Family Hike
Date:
Sun, 02/23/2025
Time:
3:00 pm - 5:00 pm
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
6
More Information  

Twilight Hike in Orchard Hills

Hiking & Fitness
Twilight Hike in Orchard Hills

Come out and enjoy the evening with us on the Orchard Hills loop trail. This trail meanders around an avocado orchard on the edge of the open space preserve and provides fantastic ridge-top views of Irvine and the Pacific coastline.

The three-mile loop has several very steep climbs and uneven terrain. This hike is done at a moderate pace. Your effort is rewarded with a beautiful, unobstructed view to the west. This hike is not suitable for children under 12. Wear sturdy, closed-toed hiking shoes, bring water and a red LED flashlight.

Twilight Hike in Orchard Hills
Date:
Sun, 02/23/2025
Time:
3:45 pm - 5:45 pm
Where:
Orchard Hills
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
Full
More Information  

Twilight Fitness Hike in Limestone Canyon

Hiking & Fitness
Twilight Fitness Hike in Limestone Canyon

Limestone Canyon is a treasure waiting to be discovered. Join us for an afternoon, fast paced, 5.5-mile fitness hike with 750 ft of elevation. The hike will be a great introduction to fitness, cardio-style hikes as well as OC Parks’ magnificent Irvine Ranch Open Space.  Views of Limestone Canyon, and the surrounding wilderness, from Limestone Ridge will be the highlight of our tour.

Twilight Fitness Hike in Limestone Canyon
Date:
Sun, 02/23/2025
Time:
4:00 pm - 6:15 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
5.5 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Monday, February 24, 2025

Monday Morning Super Trek: Weir Canyon to the Overlook Trail

Hiking & Fitness
Monday Morning Super Trek: Weir Canyon to the Overlook Trail

Come start your week with us on our Super Treks in the Landmarks. Join us as we explore Weir Canyon, part of OC Parks’ Irvine Ranch Open Space. We will hike up over Rifle Range and continue to the Overlook Trail where we will be rewarded with sweeping views of the Irvine Ranch Natural Landmarks and more distant views of the Palos Verdes Peninsula, Los Angeles Basin, and Cleveland National Forest. We will return through a beautiful oak woodland. Please wear hiking shoes/boots and bring water, a trail snack, sunscreen, hat, and any other necessary equipment to keep you safe on the trail. Participants must be able to hike 9+ miles with an accumulated elevation gain of 1800 feet at an average moving rate of 3 miles per hour.

Monday Morning Super Trek: Weir Canyon to the Overlook Trail
Date:
Mon, 02/24/2025
Time:
7:30 am - 12:00 pm
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
4
Distance:
9.5 miles
Minimum Age:
18
Spaces Left:
2 of 20
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 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, 02/24/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
13 of 25
More Information  

Tuesday, February 25, 2025

CANCELLED: Enjoy Nature’s Story, Vistas, and Special Places – Mini Moab Tour

Hiking & Fitness
CANCELLED: Enjoy Nature's Story, Vistas, and Special Places - Mini Moab Tour

Join us for a tour to the dramatic sandstone outcrops known as “Mini Moab”. We’ll hike out-and-back along the high ridges overlooking Fremont Canyon. Along the way we’ll pass an abandoned coal mine, the Fremont Canyon Weather Station, and Lizard Rock. Bring a snack to enjoy while taking in the views at our destination. Distance is 14 miles with 2900 feet of elevation gain at an average of 3 mph – designed for advanced hikers. Periodic brief breaks are planned. Participants must be physically fit and have distance hiking experience.

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

CANCELLED: Enjoy Nature's Story, Vistas, and Special Places - Mini Moab Tour
Date:
Tue, 02/25/2025
Time:
7:00 am - 2:00 pm
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
14 of 15
More Information  

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, 02/25/2025
Time:
7:30 am - 10:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
16
Spaces Left:
11 of 25
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:
Tue, 02/25/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
12
Spaces Left:
20 of 25
More Information  

Wednesday, February 26, 2025

Hangman’s Tree Monument Hike: Orchard Hills

Hiking & Fitness
Hangman's Tree Monument Hike: Orchard Hills

Join us for a challenging and beautiful adventure as we hike to the Hangman’s Tree Monument on Loma Ridge. Hike distance is 6 miles and affords fantastic views along the way, spanning the Pacific coastline, San Gabriel peaks and the Santa Ana Mountains. Several very steep climbs and descents are part of this route. We’ll accumulate almost 1800 feet of climbing elevation.

Hangman's Tree Monument Hike: Orchard Hills
Date:
Wed, 02/26/2025
Time:
7:30 am - 10:30 am
Where:
Orchard Hills
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
18
Spaces Left:
6 of 20
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, 02/26/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
12 of 25
More Information  
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