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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Saturday, April 5, 2025
Arts at the Oaks: Nature Journaling

Nature journaling is a wonderful tool for nature observations, creating lasting memories and making deeper connections with the world around us. This session will cover the basics of art theory and practices, journal anatomy and maximizing your senses.
The program will begin outside the Santiago Oaks Regional Park nature center. Bring a nature journal and your own art materials such as pencils, pens or watercolors. A portable chair is recommended along with sun protection, water and snacks. Be prepared to move along the trail a short distance and sit to document the beauty around you.
The program is free and parking is $5 per vehicle.
Advance registration required.
Inclement weather will cancel the program.
For questions, please contact resource specialist Shelly Marshall at (714) 973-6625 or shelly.marshall@ocparks.com.
BioBlitz at Dilley Preserve

Come and learn how to be a scientist by joining OC Parks in a BioBlitz! Did you know California is a biodiversity hotspot! Help scientists and OC Parks Staff with documenting the species found in Laguna Coast Wilderness Park. You will learn about California’s unique biodiverse flora and fauna and how to use iNaturalist. Then you will go out and hike on your own while documenting the species you find along the way!
Download the iNaturalist app on your phone and create an account before arriving to the program! You will choose the trail you want to hike, whether that be easy, medium, or hard.
Age: 7 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: 1/5
Materials: Participants must bring plenty of water, closed-toed shoes, and sun protection. Download the iNaturalist app on your phone and create an account before arriving to the program!
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.
Native Plant Nursery – LCF Headquarters

Join us at Laguna Canyon Foundation Headquarters’ 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: Laguna Canyon Foundation Headquarters (10 Phillips St. Laguna Beach, CA 92651, West side of highway 133)
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 or dulce@lagunacanyon.org with any questions.
Weather, including high temperatures and wet or muddy trail conditions, may lead to cancellation of this event.
Wilderness Access Day: Limestone Canyon

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.
Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon. 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 strenuous 15-mile cardio treks. Whether traveling by feet or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers and mountain bikers alike.
Participants will want to plan their day successfully by using Trail Tips to prepare.
Wilderness Access Day: Limestone Canyon, 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 Limestone Canyon’s 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 Limestone Canyon. Equestrian riders who have trail riding experience with a 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.
Upper Newport Bay Habitat Stewards

Join Upper Newport Bay Nature Preserve staff and volunteers in enhancing the Bay’s 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, refillable water bottle, etc. Water and tools are provided.
Minors ages 16 and younger must have a legal guardian present at all times.
The program and parking are free. Rain will cancel the event.
Space is limited, so please register to reserve your space (especially for groups.) Walk-ins are welcome but will be accepted based on availability.
Mile Square Story Time

OC Parks invites you to story time at Mile Square Regional Park! Join us on Saturday, April 5th from 10 – 11 am as we read nature-themed stories, take a short walk, and enjoy a hands-on activity.
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.
Jr. Ranger Adventure: Laguna Coast Wilderness Park

Earn yourself a Laguna Coast Wilderness Park Jr. Ranger Badge by completing this Jr. Ranger quest! We will be exploring the wildlife corridors at Laguna Canyon and figuring out if animals are using them and if so, why.
Age: Designed for 7 to 12 years of age, but all are welcome to participate. 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.
Family Hike: Round Canyon

Enjoy nature with friends and family in Round Canyon. We hike along a fairly flat trail as we watch for red-tailed hawks and mule deer. This activity originates in the City of Irvine and travels into OC Parks’ Irvine Ranch Open Space. The hike averages 2-3 miles round trip at an easy pace with a medium level of interpretation. This program is for participants who would like a slower-paced and level hike. Wear comfortable clothes and sturdy shoes and bring water for the hike.
Sunday, April 6, 2025
Trail Running at Bommer Canyon

Join us for an energizing trail run at Bommer Canyon, a scenic open space in Irvine known for its rolling hills, rugged paths, and breathtaking views of Southern California’s coastal landscape. This 6-mile route, featuring elevation changes totaling 2,500 feet, offers a diverse mix of rocky trails, gentle slopes, and challenging inclines, making it an excellent choice for intermediate and experienced trail runners. We’ll aim for a moderate pace of around 10-12 minutes per mile, adjusting for terrain and taking advantage of flatter sections to push the pace a bit. With a blend of uphill challenges and smooth, runnable stretches, this run will be both a great fitness boost and a beautiful outdoor adventure. Remember to bring water, a hat, sturdy trail running shoes, and some snacks. Participants should be physically fit and have prior experience with trail running or fast-paced distance hiking.
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.
Early Morning Double Loop Hike: Baker Canyon

Come explore OCParks’ Irvine Ranch Open Space. This scenic hike involves steep climbs and descents on both double and singletrack trails and around 1100’ of accumulated climbing elevation. Though challenging, the hike rewards you with sweeping views of the Irvine Ranch Natural Landmarks and Santa Ana Mountains. On clear days you can see Catalina Island and even beyond Orange County into the Los Angeles Basin.
Intermediate Mountain Bike Ride from Irvine to Limestone Canyon

We start our ride through OC Parks’ Irvine Ranch Open Space on the paved Hicks Haul Road, the extension of Jeffrey Rd north of Portola Pkwy. As we warm up on the climb to the top of the road, we enjoy increasingly beautiful views over Irvine. We then follow Loma Ridge to the East, with fantastic vistas of Orange County, the surrounding wildlands, and even Catalina Island on clear days. From Loma Ridge, we descend on a single track to Box Springs which provides year-round water for wildlife like deer.
After the springs, we continue to the Sinks, Orange County’s own “Grand Canyon,” where we enjoy our snacks during a short break. On our way back, we ride along Limestone Ridge, a fun singletrack that leads us towards the Augustine Staging area, enjoying views of Saddleback and Santiago Canyon. From there we will climb back up to Loma Ridge, and then coast back down on the paved Hicks Haul Road to our starting point. Motorized recreation vehicles of any class or type are not permitted for use in the Nature Preserve.
Native Plant and Wildflower Hike

Come join Laguna Canyon Foundation Volunteer naturalists in partnership with OC Parks to learn about the seasonal life of California Native Plants on this enjoyable 2.5-mile hike (175-ft. elevation gain) over moderately uneven terrain.
Age: 12 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.
CANCELLED: 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

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.
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.
Monday, April 7, 2025
Hike from “Gills to the Hills” – Crystal Cove Perimeter of the Park

Ready for a challenging hike to tour the Crystal Cove State Park backcountry? Join a Crystal Cove State Park docent as we go from the “gills to the hills” on this strenuous but very scenic loop hike known as the “Perimeter of the Park.” Distance is around 9 miles; elevation/gain loss, around 1500’. The hike is done at a moderate pace with two to three short breaks.
Occasionally, we may vary our route to explore other backcountry trails within the park.
Bright Birds of Spring in Gypsum Canyon – Bird Walk

Birds are among the most colorful and entertaining forms of wildlife on the Irvine Ranch Natural Landmarks. Bring your binoculars and join us on a slow/medium paced walk in OC Parks’ Gypsum Canyon Wilderness, as we search for resident and visiting birds of the local coastal sage scrub, oak woodland, riparian, and grassland habitats. We will discuss the diverse features of the birds we observe and how they match the season, their habitat and lifestyle. We will travel mostly on ranch roads, usually without shade. Beginners to advanced bird enthusiasts are welcome. Please wear sturdy shoes suitable for hiking and bring water, along with sun protection such as a hat and sunscreen. A small birding field guide may be useful if you have one. A few binoculars will be available to borrow.
Nature Immersion Meditation

Mindfulness is the practice of being present and aware in the moment. It can help reduce stress and anxiety, improve mood, and promote overall well-being. Come cultivate mindfulness, in Nature. This guided meditation session is a space to truly engage your senses and relax that busy mind. Give yourself this time to notice the sights, sounds, smells, and tastes around you. Engaging your senses can help bring you into the present moment, cultivating awareness, inner peace, and JOY. Spending time immersed in Nature can help boost your immune system too!
Close toed shoes and comfortable clothing are recommended. A yoga mat or portable chair is suggested, along with sun protection and water. If you do not have something to sit on, your guide has extra tarps and pads to sit on.
This program is recommended for ages 10 and older. Minors under 18 must be accompanied by a guardian. No experience necessary!
We will meet at Freedom Hall.
Advance registration required.
This program is free and parking is $3 per vehicle. Please arrive on time to experience the full sequence of the program.
For questions, please call (657) 735-3596 or email averil.lough@ocparks.com.