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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Wednesday, January 17, 2024
After Work Fitness Hike on Paved Hicks Haul Road

Join us every Wednesday night in OCParks’ 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!
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.
Thursday, January 18, 2024
Thursday Morning Trek: Bommer Canyon

This week in the Irvine Open Space Preserve, we’ll be in Bommer Canyon, once part of the historic Irvine cattle ranch where corrals and ranch equipment still stand. The hike is a seven-mile loop with some climbing but rewards you with fantastic views overlooking the ocean and many Irvine locales. Please bring water, a trail snack, sunscreen, a hat, and any other necessary equipment to keep you safe on the trail. Get your boots out and register to hike the loop through the Laguna Coast Wilderness and back to Cattle Camp.
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.
Fitness Hike – Ridge Park

Please be aware this is a Fitness Hike and not for beginners; the pace is approximately a 19-minute mile. Raise your heart rate and your spirits on this difficult, strenuous, and fast-paced, 6.6-mile hike (1,100-ft. elevation gain) over very steep, uneven terrain with Laguna Canyon Foundation volunteers.
Please note the following safety precautions and protocols:
Pre-registration on lagunacanyon.org is required for this event. No walk-ups. Please register here.
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 16 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: Ridge Park, Laguna Coast Wilderness Park. Meet at the end of Ridge Park Road/Trail Entrance.
Parking: Free.
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, January 19, 2024
Morning Hike at Gypsum Canyon Wilderness

Explore Gypsum Canyon Wilderness and hike OC Parks’ newest trails!
Learn about native plants and animals that can be found in the area and take in remarkable views of Gypsum Canyon. This moderate hike on unpaved dirt trails is approximately four miles round trip with 600 feet of elevation gain. We’ll cover many topics including birding, history, geology and native plants while taking breaks to enjoy the views.
Participants should come prepared with water, snacks, sun protection and sturdy walking shoes. Rain or adverse weather conditions will cancel the program. Minors must be accompanied by a parent or guardian at all times.
Advance registration required.
Winter Morning Yoga Hike at Quail Hill

Enjoy a five 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.
Bayview Restoration Day at the Upper Newport Bay

Come help us remove non native plant species from our Bayview Drainage restoration site within the Upper Newport Bay!
The Bayview Drainage project was completed in 2019 and restored a heavily eroded hillside within the Upper Newport Bay Nature Preserve. Native plants have been installed to increase biodiversity and a drainage basin was created to reduce sediments and pollutants from entering the bay.
We need your help to remove a variety of non-native plant species growing within this restoration area. Newport Bay Conservancy staff will teach you proper weeding techniques, no experience necessary. All tools and supplies will be provided.
Minors must have a legal guardian present at all times.
To register, go to: Bayview-Restoration.eventbrite.com
Parking & Meetup Location
We will meet at 9am at the restoration site. Parking location and directions will be included in your confirmation email following registration. From the parking location, the restoration site is a short 5-minute walk. NOTE: There are no restrooms at this location.
What to Wear/Bring
Wear clothes you don’t mind getting dirty and closed toe shoes. Breathable long sleeves, pants, a hat, water bottle, and sunscreen are recommended.
Wild Tales

Join OC Parks staff for Wild Tales, offered every Friday! Each session will include a kid friendly hike, story time and a 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 is recommended.
Adverse weather conditions will cancel the event.
Saturday, January 20, 2024
Limestone Canyon – Weekend Hike to both Sinks

Join us on this fast-paced hike over the ridge and the through beautiful Limestone Canyon Nature Preserve, part of OCParks’ Irvine Ranch Open Space. While this will not be a cardio hike, it will be a steady pace of 3 mph with short breaks at the East and West Sinks viewing platforms. We will enjoy a view of wonderful vista’s 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.
Please come prepared with a sturdy day pack, water, snacks, closed-toe hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail on this half-day hike in the wilderness area. Under-prepared hikers may be denied access to the event.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
FREEKS Ride: Clockwise

Join us in OCParks’ Irvine Ranch Open Space for a challenging docent-led mountain bike ride for very experienced off-road riders in excellent cardio shape. Climb challenging State Spur to Cathedral Rock, and then descend into Fremont Canyon while passing some of Orange County’s most spectacular geological formations. The ride continues out to Mini-Moab and then over to Sierra Peak, passing the Tecate Cypress forest, then past Sierra Peak, and over to the last descent down through historic Black Star Canyon.
Motorized recreation vehicles of any class or type are not permitted for use in the Nature 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.
Bird Walk

Spot local native and seasonal resident birds with Laguna Canyon Foundation volunteer naturalists on this 2-mile hike over moderate but uneven terrain (up to 100-ft elevation gain) through one of the most diverse plant communities in the United States. No experience necessary! for ages 12 and up (minors under 18 must be accompanied by an adult). Wear hiking or walking shoes and bring your binoculars. Laguna Coast Wilderness Park, James Dilley Preserve (I-5 or I-405 to 133 south to stop light at 73 toll road; make a U-turn and go 1/2 block. Dilley is on the right). Online reservations required: www.lagunacanyon.org/events. Please register here.
For questions call: 949-497-8324 Mon.-Fri. or 949-923-2235 Sat./Sun. Parking: $3/vehicle
CANCELLED: Growing Together at the Native Seed Farm

Looking for a way to give back to Nature this Winter? 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!
Reviewing the 1-5 Difficulty Ratings will help you evaluate your readiness to participate in this Level 2 activity. Activities may include bending, stooping, crouching, squatting, long periods of standing, reaching, pulling, grabbing, and pushing.
Please note our Minors Policy for all public activities: All minors (under 18 years of age) must be accompanied by their respective parent or legal guardian. Both parent and their accompanying minor(s) must be registered for the Irvine Ranch Conservancy led activity they wish to attend.
Keep It Wild – Native Plant Nursery

Join 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 help maintain the nursery. Gain hands-on experience with habitat restoration while working alongside other zany and interesting plant lovers! Wear closed-toed shoes, layered clothing and sun protection. Bring water. Laguna Coast Wilderness Park, Willow Canyon Staging Area (west side of Laguna Canyon Rd/SR-133, just south of El Toro Road). You must arrive by 8 am. Park and walk up the gravel trail 100 yards to get to the small native plant nursery, just before the trailers. Ages 16 and up. Ages 16 and 17 must be accompanied by a parent or guardian. Online reservations required: lagunacanyon.org/events. Please register here.
For questions, call 949-497-8324 Mon-Fri or 949-923-2235 Sat/Sun. Free parking passes will be provided for volunteers at the nursery.
Mountain Bike Clinic: Fundamental Skills

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.
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.
Saddleback Wilderness Access

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.
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.
Sunday, January 21, 2024
CANCELLED due to Trail Conditions: Advanced Distance Hike: Quail Hill

The title says it all. This is your chance to venture deep in the Irvine Open Space Preserve. Join us for a challenging and beautiful adventure. Hike 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. Over 2800 feet of accumulated climbing elevation is experienced on this route.
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.
CANCELLED due to Trail Conditions: Intro to Cardio Hike: Weir Canyon Rifle Range Loop

Thinking the cardio hikes might be too fast for you? If so, join us in beautiful Weir Canyon for this slightly slower introduction to cardio hiking. Along the trail, you’ll pass through coastal sage scrub, grasslands, and oak woodlands where deer and bobcats are frequently observed. Multiple steep climbs and descents, and sweeping views, are included throughout this 6-mile hike. Please make sure you are in excellent physical condition! Even though this is a slower cardio hike, it is faster than a walk. You must be able to hike 3+ miles per hour the entire time without stopping.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please review our Trail Tips and FAQ pages to ensure you arrive prepared for this hike.
CANCELLED due to Trail Conditions: Sunday Fitness Hike at Hicks Haul

Join us Sunday morning in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the Hicks Haul Road, West Loma and Shoestring trails in Limestone Canyon. Hikers will enjoy wonderful views and a panoramic overview of Orange County. The hike starts at Hicks Haul Road staging area and will cover a distance of 8.5 miles, about 5 miles of the hike is on paved surface and rest on trails. Participants are expected to hike close to 3 miles per hour and come prepared with closed toe hiking boots or shoes, water, trail snacks, sunscreen, hat, day pack or fanny pack, and any other necessary equipment or supplies you might need to keep you safe on this hike.
CANCELLED due to Trail Conditions: Limestone Canyon Distance Hike: Panoramic Sinks View from the Water Tank

Explore beautiful Limestone Canyon on this challenging distance hike to the “water tank” beyond the East Sinks viewing area. This distance hike rewards hikers with panoramic unobstructed views of The Sinks, an ancient and dramatic formation of exposed sandstone cliffs. Limestone Canyon is one of the most pristine wilderness areas in the county. In addition to providing sweeping views, the trail passes through coastal sage scrub, grasslands, and oak woodlands. This hike moves between 3 and 3.5 mph with multiple sustained climbs.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-5 activity on the land.