The activities below are offered by a variety of organizations and their dedicated volunteers. All programs are FREE unless noted below. Programs led by IRC-Certified Volunteers require pre-registration, which closes at 4 p.m. on the day prior to the event. No walk-up registrations will be permitted for these events. For policies of other organizations, please use the sign-up information provided. For mobility device policies click here.
Note: Minors must be accompanied by a parent or guardian for these events. For programs requiring online registration, each adult and child must be registered. |
Need help? For the fastest answers, look for organization-specific contact information in each event listing (click More Information for full listing). If no contact information is listed, email info@irconservancy.org for assistance.
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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Friday, May 9, 2025
CANCELLED: 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.
Crystal Cove State Park Full Moon Hike

Explore the Park After Dark, on a guided interpretive 2-hour, 4-mile Full Moon Hike at Crystal Cove State Park. A park naturalist will lead hikers on this moderate to difficult loop trail with uneven terrain and a steep uphill climb, elevation gain of 600 ft. This hike is suitable for ages 10 and up. Hikers must wear sturdy shoes, bring water, and insect repellent. Please bring a red flashlight, if you don’t have one, we will have some to share. Meet at the Ranger Station (PCH inland at stoplight School-State Park, follow the signs to the Ranger Station). $15 day use fee.
Saturday, May 10, 2025
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.
Limestone Canyon – Weekend Hike to Both Sides of the Sinks

Join us on this moderate-paced hike over the ridge and the through beautiful Limestone Canyon Nature Preserve, part of OC Parks’ Irvine Ranch Open Space. We will enjoy short breaks at the East and West Sinks viewing platforms before hiking back through the canyon. We will enjoy a view of wonderful vistas in addition to spectacular view of The Sinks. This hike involves hiking on both double and single-track trails with an elevation gain of 1000.
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.
Restoration Day

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.
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.
Agua Chinon and the Sinks Exploration Day

Please note: Preregistration is required due to limited parking capacity.
Start your weekend off by exploring the Agua Chinon wash and the Sinks through this self-guided opportunity. Designated trails will be open for self-guided trail use in OC Parks’ Irvine Ranch Open Space. Trail routes vary in distance and level of difficulty with choices ranging from easy one-hour walks to a strenuous 9.5-mile trek. Whether traveling by feet or on two wheels, this exploration day is a treasure waiting to be discovered by hikers and mountain bikers alike. Visitors to the Open Space during this activity are able to hike or bike to the West and East Sinks viewing areas.
Please review our Trail Tips page and FAQ page to prepare for this challenging hiking and biking opportunity.
CANCELLED: Trail Stewardship – Rock Work Skills on Old Emerald

A special opportunity for experienced Laguna Canyon Foundation volunteers: join us to gain new trail skills as we construct a rock-armored drain on Old Emerald Trail. Rock armoring is one of the best ways to address erosion on steep trails. This work requires patience and precision. If you have volunteered for trail stewardship with LCF 5 or more times, and want to add to your skill set, this event is for you. We will also be addressing tread issues and completing naturalization. There will be a 30-minute lunch break (lunch provided). We will be using tools such as loppers, picks, shovels, and McLeod’s to improve the user experience, protect the fragile habitat and increase the sustainability of our trails. Expect to hike up to 3 miles while carrying tools.
We have limited space for this event. Please only register for either April 19th or May 17th.
To register, please email Trails Project Manager Craig Dicht at craig@lagunacanyon.org. Registration will close on Monday, May 5th, 2025.
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, East side of highway 133)
Parking: Free parking for Trail Stewardship volunteers at LCF Headquarters. Parking is limited; carpooling is encouraged.
Difficulty Rating: 3/5
Materials: Participants must bring at least 3 liters of water, closed-toed shoes, long pants, and sun protection. Gloves and tools are provided. Feel free to bring your own gloves if you prefer!
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, craig@lagunacanyon.org, and nicholas@lagunacanyon.org with any questions.
Weather, including high temperatures and wet or muddy trail conditions, may lead to cancellation of this event.
Growing Together at the Native Seed Farm

Looking for a way to give back to Nature this Spring? 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!
Wilderness Access Day: Gypsum Canyon 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 irvineranchopenspace@ocparks.com to coordinate parking.
Come explore 6 miles of new trails at Gypsum Canyon Wilderness through this self-guided opportunity.
Located within OC Parks’ Irvine Ranch Open Space, Gypsum Canyon Wilderness features seven new trails for hiking, mountain biking and horseback riding. Two lookout points offer sweeping views of the surrounding canyons and unique prehistoric rock formations. Multiple loop options that vary in distance and range from easy to moderate in difficulty are available for self-guided exploration.
Gypsum Canyon Wilderness is comprised of protected and preserved native habitats that a variety of wildlife, including mule deer, red-tailed hawks, California gnatcatchers and bobcats, call home.
Rain or inclement weather will cancel the program.
Gypsum Canyon Wilderness is located at 390 South Gypsum Canyon Road, Anaheim, CA 92887.
Please review our Trail Tips page and FAQ page to prepare for your experience in the wilderness area.
Wildfire Prevention Symposium

Join Us Saturday, May 10th for the Wildfire Prevention Symposium hosted at the City of Irvine’s Quail Hill Community Center. This engaging event unites experts, volunteers, and residents to discuss critical wildfire awareness and prevention strategies in Orange County.
Date: Saturday, May 10th from 8am-12pm
Location: Quail Hill Community Center, 39 Shady Canyon Dr, Irvine, CA 92603
8:00 AM | Check-in with Breakfast and Coffee
9:00 AM | Program Begins
10:30 AM | KeyNote Speaker, SensoRY AI and Wildfires
12:00 PM | Event Concludes
SensoRY AI and Wildfires – SensoRy AI was developed by Ryan Honary, who created a concept for a remote detection system capable of predicting and detecting wildfires in real time after he witnessed the devastation caused by the Camp Fire in Northern California in 2018. Click here to learn more about our guest speaker Ryan Honary
Why This Event Matters: Your sponsorship directly helps protect local families, homes, and wildlife from devastating wildfires.
Click Here to View Event Details and Sponsorship Opportunities
This event showcases crucial fire prevention programs and provides a platform for impactful discussions on reducing wildfire risks in our communities.
Questions? Please contact Program Coordinator, Renalynn Funtanilla at rfuntanilla@irconservancy.org or call 714- 508-4707
Animal Signs and Tracks in Fremont Canyon

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.
Morning Yoga Hike in Baker Canyon

Enjoy a 3+ mile hike and gentle yoga practice in nature. The hike through Baker Canyon, part of OCParks’ Irvine Ranch Open Space, includes an elevation gain of approximately 500′ and will be a nice warm up for a gentle morning yoga flow under a shaded canopy. Please bring water, your own yoga mat and large beach towel. Mats will not be provided; we will drop mats at secure location while hiking. Closed-toe shoes, water, hats and sunscreen recommended for the hike.
Fossils are Fun

Come out and enjoy this family-fun activity on the Mesa. We will start with an activity to make your own fossil, then we will take a 2–3-mile hike looking for fossils deposited here in Orange County millions of years ago when Orange County was a sea. A slight elevation gain (200 feet) to start the hike will give incredible views of the surrounding peaks and the red rock cliffs of Black Star Canyon. Wear comfortable shoes, bring water and enjoy an early morning hike in this intriguing region.
Mile Square Story Time

OC Parks invites you to story time at Mile Square Regional Park! Join us on Saturday, May 10th from 10 – 11:30 AM as we read nature-themed stories, take a short walk, and enjoy a hands-on activity. This program is recommended for young children 0 to 5 years old but all are welcome.
Please bring sun protection, snacks, water, and anything you need to be comfortable. We will meet at Freedom Hall.
Advance registration is required.
This program is free and parking is $5 per vehicle.
For questions call (657) 735-3596 or email averil.lough@ocparks.com.
Inclement weather may cancel this program.
CANCELLED: Wildflower Walk at the Native Seed Farm

Join us for a leisurely walk through the Native Seed Farm to see our wildflower plots in bloom. We’ll stick to the hard-pack roads around the fields – bring your camera to take photos or simply enjoy the scenery. You’ll learn about the plants we grow and why we grow them, and see pollinators in action. We’ll finish the activity with a walk around the other fields at the farm so that you can see our grasses, woody plants and perennial forbs up close.
CANCELLED: Stories Carved in Stone

Join OC Park and LCF Volunteers on this moderate 3-mile program with 300-foot elevation gain over uneven, steep and rocky terrain. Step back 25 million years in Orange County’s history to a time when the seas receded, and the San Andreas Fault was just starting to form. Discover the geologic processes going on today and how they affect the natural landscape!
Age: 7 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: $3/car at Willow Staging Area 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 with any questions.
Weather, including high temperatures and wet or muddy trail conditions, may lead to cancellation of this event.
CANCELLED: Native Plant Tea!

Join us for a sensory journey into the world of native plant teas! We’ll explore the ecological roles of our Coastal Sage Scrub plants, their cultural significance, and their unique flavors. Participants will have the opportunity to create their own unique tea blend to taste. New flavors will be offered!
Age: 12 or older. Participants under 18 must be accompanied by a parent or guardian.
Location: Nix Nature Center, Laguna Coast Wilderness Park (18751 Laguna Canyon Road, Laguna Beach 92651, East side of Laguna Canyon Rd/SR-133).
Parking: $3/car at Nix Nature Center 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.
CANCELLED: Family Hike at Black Star Canyon

Enjoy an afternoon family hike in Black Star Canyon, part of OC Parks’ Irvine Ranch Open Space. We will hike along a flat trail and cross a dry creek as we watch for red-tailed hawks and mule deer. The hike will average 3-4 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.
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.