Friday, April 25, 2025
Seasonal Science Series: Spring Social Butterfly Habitat Enhancement

Join us for a slow-paced interpretive hike related to current IRC projects focused on research, monitoring, and conservation. The series will rotate through the landscape based on the season and projects.
For this series, we will spend the spring morning hiking along beautiful Limestone Canyon where we will focus on the butterflies in Limestone Canyon, and the newly created butterfly habitat plots. These plots were seeded and planted with a variety of both host and nectar plants to aid the documented, declining population of butterflies in the canyon. We will hike through Limestone canyon plot by plot, and up to Dripping Springs, a natural water source dripping out of an earthquake fault and down a gorgeous fern-covered rock face.
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.
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 recommended. Program and parking are free.
Adverse weather conditions may move the program indoors or cancel it.
Jr. Ranger Adventure: Irvine 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.
Participants will explore Irvine Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge. This program will begin outside the Nature Center.
This program is designed for ages 7 to 12, but all are welcome.
Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.
The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.
Advance registration is required.
For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.
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.
Saturday, April 26, 2025
Advanced Cardio Hike: Red Rock Wilderness

Join us for a strenuous, extremely challenging, fast-paced, early morning cardio hike in Red Rock Wilderness part of OC Parks’ Irvine Ranch Open Space. Along the way we’ll be rewarded with panoramic views and possible wildlife sightings. This is an 9-mile cardio hike, completed in 2.5+ hours, includes a 1000+ foot elevation change. This hike is for experienced, physically fit hikers who enjoy the challenge of multiple steep climbs and descents. This hike is much faster than a regular walking hike. We average four (4) miles per hour, fast-paced and is extremely difficult over steep terrain in the wilderness setting.
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.
Portola to The Sinks

Do you want to explore the Sinks, a geological rock formation that has got its reputation as “Orange County’s miniature Grand Canyon”? Come out and join us on a hike from the Portola staging area to the West Sinks in OC Parks’ Limestone Canyon. Distance is about 6 miles, with some sustained climbing in one section. Participants must wear sturdy, closed-toe hiking shoes. Remember to pack plenty of water, sunscreen, a hat, and all other necessary equipment to keep you safe on the trail. This activity originates in the City of Irvine (Portola Staging Area) and travels into OC Parks’ Irvine Ranch Open Space.
Bird Walk

Spot local native and seasonal resident birds with Laguna Canyon Foundation Volunteer naturalists on this slow and easy 2-mile hike through a landscaped suburban parkland setting at Laguna Niguel Regional Park. No experience necessary!
Age: 12 or older. Participants under 18 must be accompanied by a parent or guardian.
Location: Laguna Niguel Regional Park, at 28241 La Paz Road, Laguna Niguel, CA 92677.
Parking: $5/car at Laguna Niguel Regional Park parking lot. Turn right after entering the park and then left into Lot A. Meet at the west end of Parking Lot A closest to shelter 3.
Difficulty Rating: 2/5
Materials: Participants must bring plenty of water, closed-toed shoes, and sun protection. Binoculars 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.
Bird Walk at Mile Square

Mile Square Regional Park has some of the highest bird diversity in Orange County and this gentle paced walk led by highly trained OC Parks Volunteers will help bird watchers of all experience levels discover what the park has to offer. All are welcome and loaner binoculars will be available.
Water, closed toe shoes and sun protection are recommended. This approximately 2 mile walk will begin in Parking Lot H.
Minors aged 16 and younger must have a legal guardian present at all times.
Space is limited and advance registration is required.
The event is free, but parking is $5.
Rain will cancel the event.
For questions, please contact Averil Lough at averil.lough@ocparks.com or call (657) 735-3596.
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!
Hiking Through History

Celebrate 50 years of recreation at Santiago Oaks Regional Park by hiking through its history! Learn about the Windes family that called this park home, the flood of 1969 and the grassroots effort to preserve Barham Ranch as parkland. Stops will include the Historic and Villa Park dams, iconic orange grove, nature center and more.
The walk will begin in front of the nature center located near the park entrance and will be approximately 2 miles with little elevation gain.
Walk-ins are welcome, but registration is recommended.
Children must be accompanied by a parent or guardian during the program and strollers are not recommended. Sun protection, sturdy footwear and plenty of water are strongly encouraged.
The program is free and parking is $5 per vehicle.
Inclement weather may cancel the program.
For questions, please contact resource specialist Shelly Marshall at (714) 973-6625 or shelly.marshall@ocparks.com.
Land Tending – Aliso & Wood Canyons

Join Laguna Canyon Foundation and OC Parks at one of our Land Tending days in Aliso and Wood Canyons Wilderness Park as we learn and work together to create a healthier habitat for the native plants and wildlife that call Aliso Creek 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: Aliso Viejo Community Park (150 Cedarbrook, Aliso Viejo, CA 92656), we will walk to the project site together.
Parking: Free neighborhood street parking. Please park legally. 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.
Moderate-Paced Mountain Bike Ride: Fremont, Blind, Weir Canyon

Experienced mountain bikers can explore one of the most rugged and remote areas of OC Parks’ Irvine Ranch Open Space from the trails of Fremont Canyon Nature Preserve on this moderate-paced ride through Fremont, Blind, and Weir Canyons. Fremont Canyon remains one of the most wild places in Orange County, with a diversity of rare plants and animals. This ride includes natural trail hazards such as sand, tree roots, ruts, and exposed rocks. PLEASE NOTE: there are multiple very steep climbs, with an approximate elevation gain of 2,000 feet over 15 miles. This hard ride is for adult-only riders in excellent physical condition who will be rewarded with the beautiful vistas. Motorized recreation vehicles of any class or type are not permitted for use in the Nature Preserve.
Trail Stewardship – Rock-It

If you use the Wilderness Parks for hiking, biking, photography or just relaxing, Trail Work might be right up your alley! Get up close and personal with the trails you use; you’ll see them in a whole new way. No experience necessary. This is FUN hard work. Whatever your skill level is, there is a job to do: clearing drains to get the water off the trail, pruning vegetation back to keep users on the trail, moving dirt to rebuild eroded tread, and restoring impacted areas are just some of the tasks we will accomplish. 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 4 miles while carrying tools.
Age: 16 or older. Participants under 18 must be accompanied by a parent or guardian.
Location: Canyon View Staging Area, Aliso & Wood Canyons Wilderness Park. From Pacific Park/Canyon Vistas intersection, go northwest on Canyon Vistas.
Parking: Park legally (note street signs) on or near Canyon Vistas, preferably between Coastal Oak and Madia (22144 region of Canyon Vistas). We will meet on the paved sidewalk easement leading toward Wood Canyon Trail. 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.
Wilderness Access Day: Saddleback 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 3.3 miles of new trails at Saddleback Wilderness, part of OC Parks’ Irvine Ranch Open Space, through this self-guided opportunity. Designated trails will be open for self-guided hiking, biking and equestrian use. There are multiple trail loop options which vary in distance and level of difficulty. Choices range from an easy one-mile loop to multiple figure-8 configurations for those looking to maximize their mileage. Regardless of distance, nearly all options feature scenic views including a destination vista point offering 360-degree perspectives from the mountains to the sea.
Please review our Trail Tips page and FAQ page to prepare for your experience in the wilderness area.
Create in the Park: Starting with Simple Shapes

Join OC Parks at Arden: Helena Modjeska Historic House
and Gardens for Create in the Park! Professional artist,
Dori Dewberry, will show you a fun way to approach
picture making using simple shapes to craft successful
compositions. Artists of all levels are welcome to enjoy
the tranquil grounds and draw inspiration from the historic
structures, water features and native garden. A guided tour
about the history of Arden and Helena Modjeska’s artist life
will also be included.
This program is designed for ages 12 and older. Materials
are not provided, only art instruction. A list of recommended
materials will be made available to all registered participants
in advance of the program. Sun protection, water and snacks
are recommended.
This program is free with free parking, but reservations
are required due to limited parking on-site. To RSVP, visit
OCParks.com for more information or contact the park office
at (949) 923-2230.
EarthCraft

Enter a world of creativity by making nature themed crafts and artwork with your little ones. We’ll exclusively use Earth friendly materials that have either been found in nature, reused from regular daily products, or have been responsibly sourced. Sycamore trees will provide shade and ambiance over the picnic tables on beautiful weather days and the visitor center will give shelter if it’s chilly or toasty outdoors. Fear not, an enjoyable new project will be planned for each event!
Age: This program is intended for ages 4-10. Participants under 18 must be accompanied by a parent or guardian.
Location: Aliso & Wood Canyons Visitor Center, Aliso & Wood Canyons Wilderness Park (28373 Alicia Parkway, Laguna Niguel, CA 92677)
Parking: $3/car at Aliso & Wood Canyons Visitor Center. Parking is limited, carpooling (and walking or biking) is encouraged.
Difficulty Rating: 1/5
Materials: Participants must bring water and snacks, wear 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, supplies and enjoyment. 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.
Nature’s Grocery Store

Come enjoy and learn about the bounty of the local flora and fauna. We will talk about how the animals and early settlers of the area survived and thrived with what nature has to offer. We will discuss how over-grazing, weather, and seasonal patterns affected the daily availability of food in times when there were no grocery or convenience stores. Buckwheat graham crackers, prickly pear jam, and lemonade berry drink are a few of the tempting treats that we will taste-test. After a few snacks, we will take a short stroll along Baker Canyon and take in all the bounty of nature.
O’Neill Regional Park – Trash Cleanup

Join Park Staff and OC Parks volunteers with a trash clean-up day in O’Neill Regional Park. Take a morning stroll along the Arroyo Trabuco trail and day-use areas while picking up litter to preserve this beautiful park!
Ages 10 and up. Minors must be accompanied by a parent or legal guardian.
Materials such as gloves and trash bags will be provided. Limited trash pickers and buckets will be available.
Event Details:
Location: O’Neill Regional Park (Meet at Arroyo Trabuco Trailhead)
Parking: Available in the Oak Grove Day-Use area.
Admission: A $5 vehicle entry fee applies for those without a camping reservation. The event itself is free.
Participant Information:
Please bring plenty of water, snacks, close-toed hiking shoes, comfortable clothing, hat and sunscreen.
Weather, including high temperatures and wet or muddy trail conditions, may lead to the cancellation of this event.