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 494 Events

Wednesday, August 13, 2025

Jr. Ranger Adventure: William Mason Regional Park

Interpretive
Jr. Ranger Adventure: William Mason 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.

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: William Mason Regional Park
Date:
Wed, 08/13/2025
Time:
3:00 pm - 4:30 pm
Where:
Mason Regional Park
Difficulty Rating:
2
Minimum Age:
8
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, 08/13/2025
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 8:00am on 07/29/2025
More Information  

Thursday, August 14, 2025

Thursday Morning Trek: Limestone Canyon and Dripping Springs

Hiking & Fitness
Thursday Morning Trek: Limestone Canyon and Dripping Springs

This week in OC Parks’ Irvine Ranch Open Space, we’ll hike in Limestone Canyon to Dripping Springs. The hike is a 7-mile loop hike which includes some hills and descents. In addition to the springs, we will enjoy panoramic views of the wildlands from East Loma. Please bring water, a trail snack, sun screen, hat, and any other necessary equipment to keep you safe on the trail, and wear sturdy, closed-toe hiking boots. Participants must be able to hike 7 miles with an elevation gain of 1300 feet at an average moving rate of 3 miles per hour. Each hiker must carry his/her own water and supplies.

Thursday Morning Trek: Limestone Canyon and Dripping Springs
Date:
Thu, 08/14/2025
Time:
7:00 am - 10:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 07/30/2025
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, 08/14/2025
Time:
8:00 am - 11:00 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 07/30/2025
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, 08/14/2025
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 07/30/2025
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, 08/14/2025
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 07/30/2025
More Information  

Friday, August 15, 2025

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, 08/15/2025
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 07/31/2025
More Information  

Summer Morning Yoga Hike at Quail Hill

Hiking & Fitness
Summer Morning Yoga Hike at Quail Hill

Enjoy an easy two-mile hike to warm up your legs before practicing yoga in nature. The hike is highlighted with views of Irvine, the remaining Tustin blimp hangar and a seasonal pond. The yoga is suitable for those with little or no experience and features basic poses centered on the muscles used for hiking, biking and other sports. Our focus on breath calms the nervous system and has positive effects on mental, emotional and physical health. If you have never done a yoga hike before you will be surprised how connected you feel to nature. Please bring water, your own yoga mat plus a large beach towel, and wear shoes appropriate for hiking on trails.

Summer Morning Yoga Hike at Quail Hill
Date:
Fri, 08/15/2025
Time:
8:00 am - 11:00 am
Where:
Quail Hill
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 12:00am on 07/31/2025
More Information  

Seasonal Science Series: Intro to iNaturalist at the Butterfly Enhancement Project

Community Science
Seasonal Science Series: Intro to iNaturalist at the Butterfly Enhancement Project

Be part of a hiking series inspired by current IRC projects in research, monitoring, and conservation. This rotating series highlights different areas of the landscape depending on the season and ongoing projects.

In this session, we’ll spend the morning exploring Limestone Canyon, observing local plants and animals, and learning how to identify them using the iNaturalist app.

Before arriving, please download the free iNaturalist app and create an account on your smartphone to fully participate in the activity.

During the hike, we’ll stop at 2–3 butterfly monitoring plots for 5–10 minutes each to document the flora and fauna we encounter using the app. It’s a great opportunity to contribute to community science while deepening your connection to the land.

Seasonal Science Series: Intro to iNaturalist at the Butterfly Enhancement Project
Date:
Fri, 08/15/2025
Time:
8:30 am - 11:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
2.5 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 07/31/2025
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, 08/15/2025
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 07/31/2025
More Information  

Wild Tales

Interpretive
Wild Tales

Spending time outside is one of the best ways to nurture curiosity and instill a love of the natural world. Bring your young ones and join OC Parks staff to learn all about the Newport Back Bay.

Our Wild Tales program is offered every Friday from 10:00-11:00am and includes a story time, an age-appropriate hike, and a themed craft. Each week will focus on a different topic that encourages young ones to learn about the outdoors.

The program begins at the Peter and Mary Muth Interpretive Center. Program content is tailored for the preschool level (ages 2-5), but all are welcome to attend. Minors under age 18 must be accompanied by an adult guardian. Please wear comfortable attire and closed-toe shoes.

Advance registration is REQUIRED. In an effort to keep our program size manageable and engaging for participants, this program no longer accepts walk ups. Program and parking are free.

Adverse weather conditions may move the program indoors or cancel it.

Wild Tales
Date:
Fri, 08/15/2025
Time:
10:00 am - 11:00 am
Where:
Upper Newport Bay
Difficulty Rating:
1
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 6:00am on 08/01/2025
More Information  

Woodland Wellness Walk

Interpretive
Interpretive

Inspired by the Japanese practice of “shinrin-yoku” or “forest bathing,” this walk invites you to take a break from the busy world and immerse yourself in nature. Throughout the program, you will be encouraged to explore your surroundings using all your senses to deepen your connection with nature.

This is a guided, slow-paced walk with frequent opportunities to meditate and relax, designed for participants 16 and older. Participants are encouraged to bring a yoga mat or other comfortable seating and their favorite tea or water for the closing tea ceremony. Please wear comfortable attire and be prepared to walk on uneven terrain.

The program will begin outside the nature center. Please arrive on time to experience the full sequence of the program.

Registration is required.

Inclement weather will cancel the program.

The program is free and parking is $5 per vehicle.

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

Woodland Wellness Walk
Date:
Fri, 08/15/2025
Time:
10:00 am - 12:00 pm
Where:
Santiago Oaks Regional Park
Difficulty Rating:
1
Minimum Age:
16
Spaces Left:
13 of 15
More Information  

Nature Journaling during the Perseids Meteor Shower

Interpretive
Nature Journaling during the Perseids Meteor Shower

Nature journaling is a wonderful tool for nature observations, creating lasting memories, and making deeper connections with nature. Enjoy the transition from sunset to hopefully catching a glimpse of a shooting star during this season’s Perseids Meteor Shower.

Build upon your own sense of place to maximize mindfulness and relaxation. Each session will cover the basics of art theory and practices, journal anatomy, and immersing your senses in the wonders of nature. Bring a nature journal and your own art materials such as pencils, pens, or watercolors. A portable chair is recommended along with dressing appropriately for the weather, water, and snacks. Be prepared to move along the trail a short distance and sit to document the beauty around you.

Nature Journaling during the Perseids Meteor Shower
Date:
Fri, 08/15/2025
Time:
7:30 pm - 9:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
1
Distance:
Variable
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 07/31/2025
More Information  

Night Sky Exploration Hike in Red Rock Wilderness

Interpretive
Night Sky Exploration Hike in Red Rock Wilderness

Come take a tour of the night sky, while hiking along the red rocks in Red Rock Wilderness, part of OC Parks’ Irvine Ranch Open Space. We will explore the importance of dark skies and the use of stars for navigation, by wildlife and our ancestors. Please dress in layers, bring water, and come prepared with a pack, sturdy closed-toed hiking shoes or boots, first aid, and all other supplies to keep you safe and healthy on the trail. Each participant should carry their own pack and water. Under-prepared participants may be denied access to this activity. All flashlights must have a red lens or red tinting.

Night Sky Exploration Hike in Red Rock Wilderness
Date:
Fri, 08/15/2025
Time:
8:30 pm - 10:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
2
Distance:
3.5 miles
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 07/31/2025
More Information  

Saturday, August 16, 2025

Keep It Wild – Native Plant Nursery – Willow

Stewardship
Keep It Wild – Native Plant Nursery – Willow

Join OC Parks and Laguna Canyon Foundation volunteers in beautiful Laguna Coast Wilderness Park at our native plant nursery as we care for native plants from their seed stage to their mature, ready-to-be planted stage. Volunteers may collect seeds, sow seeds in flats, bump plants up, plant at restoration sites, sterilize plant containers, and generally help maintain the nursery. Gain hands-on experience with habitat restoration while working alongside other zany and interesting plant lovers!

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

Location: Willow Staging Area, Laguna Coast Wilderness Park (west side of Laguna Canyon Rd/SR-133, just south of El Toro Road).

Parking: Free for Native Plant Nursery volunteers! 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.

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.

Keep It Wild – Native Plant Nursery – Willow
Date:
Sat, 08/16/2025
Time:
8:00 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
16
More Information  

Mountain Bike Clinic: Fundamental Skills

Mountain Biking
Mountain Biking

If you are new to mountain biking and interested in getting started the right way, or if you are an intermediate rider wanting to broaden your existing bike skills, this is the clinic for you!

Class begins with an overview of rider fundamentals: Balance, Body Position, and Wheel Placement. You will learn which is your “Chocolate Foot,” why the mantra ‘Heavy Feet / Light Hands” is essential, and how to “Fly Your Head Like a Cheetah.” Theory will always be followed by a cycle of demonstration, practice and feedback. Difficulty will be tuned for individual participants with levels for Beginner, Experienced, and Challenge. These riding techniques will be taught and practiced at the Mountain Bike Skills Development area.

Mountain Bike Clinic: Fundamental Skills
Date:
Sat, 08/16/2025
Time:
8:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Distance:
2.5 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 08/01/2025
More Information  

Wilderness Access Day: Bommer Canyon

Special Events
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.

Wilderness Access Day: Bommer Canyon
Date:
Sat, 08/16/2025
Time:
8:00 am - 2:00 pm
Where:
Bommer Canyon Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 08/01/2025
More Information  

Wilderness Access Day: Red Rock Wilderness

Special Events
Wilderness Access Day: Red Rock Wilderness

PRE-REGISTRATION is REQUIRED for this event. 

All participants are required to have, a printed copy or on their phone, the confirmation email to show through the window of their vehicle to drive through the entry gate. You will need the confirmation email for you and your guests to enter the trail system.

Come explore OC Parks’ newest trails at Red Rock Wilderness through this self-guided opportunity.

Located within OC Parks’ Irvine Ranch Open Space, Red Rock Wilderness features more than 8 miles of new trails for hiking, mountain biking and horseback riding along with a scenic overlook that offers 360-degree views of the nearby iconic red rocks, Black Star Canyon Wilderness, Irvine Lake, Santiago Canyon and beyond. Additional 3 miles of multi-use trails within Loma Ridge Nature Preserve, part of OC Parks’ Irvine Ranch Open Space, will also be accessible for hiking, mountain biking and horseback riding. Multiple loop options that vary in distance and range from easy to moderate in difficulty are available for self-guided exploration.

Rain or inclement weather will cancel the program.

Wilderness Access Day: Red Rock Wilderness
Date:
Sat, 08/16/2025
Time:
8:00 am - 2:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 08/01/2025
More Information  

Wilderness Access Day: Red Rock Wilderness, Equestrian

Equestrian
Wilderness Access Day: Red Rock Wilderness, Equestrian

PRE-REGISTRATION is REQUIRED for this event. 

All participants are required to have, a printed copy or on their phone, the confirmation email to show through the window of their vehicle to drive through the entry gate. You will need the confirmation email for you and your guests to enter the trail system.

Come experience Red Rock Wilderness’ beauty from the back of your horse. Designated trails will be open for self-guided access hiking, biking, and equestrian use during Wilderness Access Day in Red Rock Wilderness. Equestrian riders who have trail riding experience with their own fit and able horse will enjoy the historic ranch roads of days gone by. Take in the awe-inspiring vistas from the mighty ridge tops and drink in the cool canyon shade through the oak grove.

There is limited space for equestrian parking. Riders must also have the ability to transport their horse to the staging area.

Wilderness Access Day: Red Rock Wilderness, Equestrian
Date:
Sat, 08/16/2025
Time:
8:00 am - 2:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 08/01/2025
More Information  

Artistic Ecology: Cyanotype Printing

Interpretive
Artistic Ecology: Cyanotype Printing

Join OC Parks staff and volunteers for our monthly program where art meets ecology! Come explore the natural world through the lens of creativity by creating your own cyanotype print.

This program will feature a brief nature walk focused on salt marsh botany. We’ll then create cyanotype print banners with designs based on natural materials found at the Bay and the power of the sun!

All program materials will be provided. Please wear closed-toe shoes and clothes that you don’t mind getting dirty. This program is designed for ages 12 and up.

We will begin outside of the Peter and Mary Muth Interpretive Center. The program and parking are free.

Adverse weather may move the program fully indoors.

For questions, please contact Resource Specialist Emma Arago at emma.arago@ocparks.com or call (657) 692-5401.

Artistic Ecology: Cyanotype Printing
Date:
Sat, 08/16/2025
Time:
9:30 am - 11:30 am
Where:
Upper Newport Bay
Difficulty Rating:
1
Minimum Age:
12
Spaces Left:
Registration for this event opens at 6:00am on 07/16/2025
More Information  
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