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.
Click here to learn more about IRC-Certified Volunteers. • Click here to learn more about the Difficulty Ratings.
Thursday, June 15, 2023
Pulling Together at Quail Hill

North African Knapweed, Centaurea diluta, is a recently introduced invasive plant and we need your help to get rid of it! Invading weeds degrade habitat for wildlife, exacerbate wildfire risks, and reduce overall biodiversity. Help us keep wildlife healthy by weeding North African Knapweed from Quail Hill in Irvine.
This activity takes place on some uneven terrain, and sturdy hiking boots are highly recommended. Training and tools will be provided to ensure your safety and comfort. Rattlesnakes are occasionally seen here and generally avoid people, but protective gear will be provided.
We will meet at the Quail Hill Trailhead parking lot, then walk 15-20 minutes on a bikeway adjacent to the 405 Freeway to the work site.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land.
Restoration in Big Canyon

Around 25,000 plants have been installed at our Big Canyon restoration site, and we would love your help protecting the new plantings from invasive plants. Invasive plants pose a huge threat to displacing native plant communities and wildlife at the Bay, second only to habitat loss. By removing invasive weeds, we will ensure the Big Canyon project site thrives with native plants for years to come. No prior plant ID/weeding experience necessary.
Minors must have a legal guardian present at all times.
To register, go to: RestoreBigCanyon.eventbrite.com
Interested in bringing out a large group of 15 or more? Please contact Zachery Flores at zachery.flores@newportbay.org for more information on how to sign up.
Time & Location
We will meet at 9am at the project site entrance. A map with directions will be included in your confirmation email following registration. From the parking location, the project site is a short 5-minute walk into the canyon. NOTE: There are no restrooms at this location.
What to Bring/Wear
Be sure to bring sunscreen, a hat, and plenty of water. We also recommend wearing breathable clothing that you don’t mind getting dirty. Hand tools, shovels, and gloves will be provided. All volunteers not yet fully vaccinated must wear a face mask while on the project site. Face masks are optional for fully vaccinated volunteers.
Restoration in Big Canyon

Around 25,000 plants have been installed at our Big Canyon restoration site, and we would love your help protecting the new plantings from invasive plants. Invasive plants pose a huge threat to displacing native plant communities and wildlife at the Bay, second only to habitat loss. By removing invasive weeds, we will ensure the Big Canyon project site thrives with native plants for years to come. No prior plant ID/weeding experience necessary.
Minors must have a legal guardian present at all times.
To register, go to: RestoreBigCanyon.eventbrite.com
Interested in bringing out a large group of 15 or more? Please contact Zachery Flores at zachery.flores@newportbay.org for more information on how to sign up.
Time & Location
We will meet at 9am at the project site entrance. A map with directions will be included in your confirmation email following registration. From the parking location, the project site is a short 5-minute walk into the canyon. NOTE: There are no restrooms at this location.
What to Bring/Wear
Be sure to bring sunscreen, a hat, and plenty of water. We also recommend wearing breathable clothing that you don’t mind getting dirty. Hand tools, shovels, and gloves will be provided. All volunteers not yet fully vaccinated must wear a face mask while on the project site. Face masks are optional for fully vaccinated volunteers.
CANCELLED: Equestrian Ride: Discover The Natural Wonders Of Weir Canyon

Be prepared to experience the beauty and wonder of Weir Canyon, part of OCParks’ Irvine Ranch Open Space, steeped in history and lore, on this morning equestrian ride. The ride will travel through Weir Canyon, where the trail weaves its way through a beautiful oak woodland inhabited by deer, coyote, bobcat, and many different birds. You will travel the route of the Butterfield Stage and see a monument dedicated to the Mexican ox cart drivers. If time permits, we will climb to the Two Tower vista point to look at distant views. This ride travels on wide trails with several easy to moderate climbs. Equestrians who have trail riding experience and their own fit and able horse are welcome. You will need to transport your horse to the staging area. Owners of unshod horses, please note that footing will include areas of gravel and distances over asphalt pavement. Please bring water on the ride.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Twilight Beginner Cardio Hike in Limestone Canyon

Limestone Canyon is a treasure waiting to be discovered. Join us for an early evening, moderately-paced, 5.5-mile beginning cardio hike. The hike may include a few short rest stops along the way and will be a great introduction to fitness, cardio-style hikes as well as OCParks’ magnificent Irvine Ranch Open Space. Views of Limestone Canyon, and the surrounding wilderness, from Limestone Ridge will be the highlight of our tour.
Please bring a minimum of 48 oz. water. Come prepared with a pack, sturdy closed-toed hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail for this beginner cardio-paced (3-3.5 mph with very few stops) hike in a wilderness area. Each participant must carry his or her own pack and water. Under-prepared participants may be denied access to this program.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level 3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
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. This hike in the Irvine Open Space Preserve is done at an easy walking pace. This out-and-back program travels 3.5 miles round trip to scenic Loma Ridge and back down. Please bring a red-tinted flashlight as the return portion of the hike may be after sunset.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Friday, June 16, 2023
Distance Hike: Bommer to the Sea

Join us for a challenging and beautiful hiking adventure to the sea and back. Hiking distance is up to 14 miles and is designed for advanced hikers. Participants must be physically fit and have distance hiking experience. Singletrack trails, steep climbs and descents are numerous on this route, with approximately 2400 feet of accumulated climbing elevation. Beginning in Bommer, the hike will head into Crystal Cove State Park, then pass through Laguna Coast Wilderness Park before returning to the Irvine preserve.
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.
Morning Yoga Hike at Quail Hill

Enjoy a 3.6 mile out and back hike to warm up your legs before experiencing a gentle flow yoga practice in nature. The hike is highlighted with a short but steep climb at a medium pace and takes us to a 360 degree view of the Quail Hill neighborhood. The yoga is suitable for those with little or no experience; slower in pace and gentle in practice. 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.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level 3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Restorative Birdwatching

Many studies show that bird watching can have a very positive impact on our mental health and state of mind. This slow paced and accessible bird walk will encourage bird watching practices designed to emphasize these benefits by connecting to nature, guided observation, building community, sharing stories, encouraging creativity, and practicing mindfulness.
No prior birdwatching experience is required and loaner binoculars will be available on a first come, first serve, basis. Sturdy walking shoes, water, and sun protection are recommended.
Space is limited and advance registration is required.
Rain or muddy conditions will cancel the event.
The event and parking are free.
Questions? Email nathan.taxel@ocparks.com
Sow and Grow Fridays

Join us Friday mornings in our native plant nursery for 3 hours of hands-on volunteer driven fun! Bring a friend and help us grow native plants for restoration projects around the Upper Newport Bay. Each week, you will have the opportunity to assist in seasonal activities like seed collection, sowing seed flats, transplanting seedlings, pruning, processing cuttings, composting, pot washing, weeding, and maintaining nursery space.
Minors must have a legal guardian present at all times.
This volunteer work will take place outdoors at the Back Bay Science Center. Although most of the work will be conducted under shade, volunteers should be prepared to stand and be exposed to changing weather for various lengths of time. Please bring sturdy closed-toe shoes, hiking or outdoor working attire, a reusable water bottle, sunscreen and a hat. Free parking and public restrooms are available on site. No experience necessary. Training and tools will be provided.
To register, go to: SowandGrowFridays.eventbrite.com
Wild Tales

Wild Tales is back!
Wild Tales will be offered every Friday. Each session will include a kid friendly hike, story time and craft project.
Activities are designed for ages 2-4 but all are welcome.
All minors under 16 must be accompanied by a guardian at all times.
Being that our easy hikes are on dirt trails, wearing clothes and shoes fit for such trail conditions are recommended.
Rain or heat advisory will cancel the event.
Starry, Starry Night

Come join us for an interactive evening under the stars. Immerse yourself in a scaled-down version of our solar system. Test your imagination in naming the constellations. Reenact the struggle between Orion and the Scorpion. The hike will average 2-3 miles round trip at an easy pace with a high level of interpretation. This program is for participants who would like a slower-paced hike. Wear comfortable clothes and sturdy shoes and bring water for the hike. This activity is designed with kids ages 5 – 12 in mind but, everyone is welcome.
Please review the Difficulty Ratings on the banner above before registering. Understanding the 1-through-5 ratings system will help you evaluate your readiness to participate in this level-2 activity on the land.
Saturday, June 17, 2023
CANCELLED: Saddleback Wilderness Access: Morning Session- Equestrian

Please note: Preregistration is required due to limited parking capacity.
This activity listing is for equestrian riders only. Hikers and mountain bike riders, please register for the “Saddleback Wilderness Access: Morning Session” activity.
Come explore 2.7 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.
Equestrian riders who have trail riding experience with a fit and able horse and the ability to transport their horse to the staging area are welcome. Saddleback is a dry facility. There is no water available for horses on site. Due to space constraints and radius limitations in the staging area, the maximum combined vehicle + trailer length that can be accommodated is 50′.
Please review our Trail Tips page and FAQ page to prepare for your experience in the wilderness area.
Fire Ecology

Fire is a powerful force of nature we must fully understand and respect while living in Orange County. Fire is an important part of maintaining a diverse and healthy ecosystem but human interaction has brought new challenges to this balance. We’ll explore the basics of fire science, the influences of fire in our wildlands, and how fires are helpful to some of plants through a classroom presentation and a short field hike.
Program is free though there is a Park Entrance Fee per entry vehicle. Rain may cancel the program. Program will meet at the Nature Center downstairs in the conference room. For questions, please contact Resource Specialist, Kelley.Brugmann@ocparks.com at 714-973-6625.
Geology Hike – Willow (Laurel Loop)

Our volunteer-led tour will reveal fascinating stories of our park’s ancient environments. We’ll see and better understand the origins of faults, deformation cracks leading upward towards faults, lava filed cracks, sandstone caves, landslides, and types of sandstones from different ages of geologic time. You will note how most of the above features are shown on a geologic map. Ages 9 and up.
Please note the following safety precautions and protocols:
• Pre-registration on lagunacanyon.org is required for this event. No walk-ups.
• Each participant must register individually. For group registration, please email derek@lagunacanyon.org for availability.
• Group sizes will be minimized for safety purposes.
• Each individual adult must sign the liability waiver – provided by the lead volunteers – when they arrive at the event.
• Minimum age of 9 years old accompanied by a parent/guardian. If under 18 years old, a waiver must be signed by a parent/guardian, provided at the start of the event.
• Participants must bring plenty of water, closed-toed hiking shoes, and sun protection.
In an effort 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.
Location: Willow Staging Area, Laguna Coast Wilderness Park. Meet at Willow Staging Area, west side of Laguna Canyon Rd., just south of El Toro Rd. Parking: $3/vehicle