Activities and Programs

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.

Irvine Ranch Conservancy is committed to providing a safe and respectful environment for all participants, volunteers, and employees. Certain offensive behaviors, including problematic language or attacks based on race, color, religion, national origin, sex, sexual orientation, gender identity or expression, age, disability, or veteran status will not be tolerated. Participating in certain offensive behaviors may lead to dismissal from activities.
    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.

Search & Filter Activities

Found 554 Events

Friday, June 20, 2025

Nature Creativity: Wire Wrapped Stone Jewelry

Interpretive
Interpretive

Join us for a hike through Laguna Canyon as we uncover the fascinating geological history of the area. Along the way, we’ll explore the origins and characteristics of the stones that make up the canyon, learning how natural forces shaped this beautiful landscape. After the hike, we’ll use wire-wrapping techniques to craft your very own custom stone jewelry, turning a piece of nature’s history into a wearable work of art!

Age: 12 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 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. 

Nature Creativity: Wire Wrapped Stone Jewelry
Date:
Fri, 06/20/2025
Time:
9:30 am - 11:30 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
1
Minimum Age:
12
More Information  

Golden Hour Nature Hike: Weir Canyon

Interpretive
Golden Hour Nature Hike: Weir Canyon

Experience the magic of golden hour during this year’s Summer Solstice! Join experienced OC Parks staff as we hike along the scenic hillsides of Weir Canyon within Santiago Oaks Regional Park.

The program will begin at the Weir Canyon Trailhead located at the end of Ave De Santiago in Anaheim.

Be prepared to hike over 2 miles with moderate elevation gain. Program is not recommended for small children. Anyone under 16 years of age must be accompanied by a parent/guardian during the program and strollers are not recommended. Sturdy shoes and water are recommended.

The program and parking are free. Close parking is limited, please arrive early.

Registration is required for this program.

Inclement weather will cancel the program.

For questions, please contact resource specialist Shelly Marshall at shelly.marshall@ocparks.com.

Golden Hour Nature Hike: Weir Canyon
Date:
Fri, 06/20/2025
Time:
5:00 pm - 7:00 pm
Where:
Santiago Oaks Regional Park
Difficulty Rating:
3
Minimum Age:
12
Spaces Left:
Registration for this event opens at 12:00am on 06/06/2025
More Information  

Nature Journaling on Summer Solstice

Interpretive
Nature Journaling on Summer Solstice

Nature journaling is a wonderful tool for nature observations, creating lasting memories, and making deeper connections with nature. Build upon your own sense of place to maximize mindfulness and relaxation. Each session will cover the basics of art theory and practices, journal anatomy, and immersing your senses in the wonders of nature.

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 summer solstice is at 7:44 p.m., with sunset at 8:07 p.m. We will enjoy our seasonal transition over sunset!

Nature Journaling on Summer Solstice
Date:
Fri, 06/20/2025
Time:
7:00 pm - 8:30 pm
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
2
Distance:
0.5 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 06/05/2025
More Information  

Saturday, June 21, 2025

Growing Together at the Native Seed Farm

Stewardship
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! 

Growing Together at the Native Seed Farm
Date:
Sat, 06/21/2025
Time:
8:00 am - 11:00 am
Where:
Native Seed Farm COI
Difficulty Rating:
2
Minimum Age:
8
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Hiking Through History

Interpretive
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.

Hiking Through History
Date:
Sat, 06/21/2025
Time:
8:00 am - 10:00 am
Where:
Santiago Oaks Regional Park
Difficulty Rating:
2
Minimum Age:
10
Spaces Left:
Registration for this event opens at 12:00am on 06/07/2025
More Information  

Keep It Wild – Native Plant Nursery – Willow

Stewardship
Keep It Wild – Native Plant Nursery – Willow

Join OC Parks and 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 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: Willow Staging Area, Laguna Coast Wilderness Park (west side of Laguna Canyon Rd/SR-133, just south of El Toro Road).

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 with any questions.

Weather, including high temperatures and wet or muddy trail conditions, may lead to cancellation of this event.

Keep It Wild – Native Plant Nursery – Willow
Date:
Sat, 06/21/2025
Time:
8:00 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
16
More Information  

Mountain Bike Clinic: Fundamental Skills

Mountain Biking
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.

Mountain Bike Clinic: Fundamental Skills
Date:
Sat, 06/21/2025
Time:
8:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Distance:
2.5 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Scouting Out Nature: the Coastal Sage Scrub habitat of Shady Canyon

Hiking & Fitness
Hiking & Fitness

Join this teen and ‘tween youth-friendly hike (minimum age 10) departing from Nix Nature center into the pristine habitat of Shady Canyon. We’ll hike 5 miles on a mix of single-track trails and old ranch roads. Our hike will start with a climb that rewards us with spectacular views of the surrounding hills. We will then enter the backcountry of Shady Canyon and its mature Coastal Sage community, then finally return along the ridge with fantastic views overlooking Laguna Canyon.

About the Hike

This hike has an elevation gain of 1,000 feet and we’ll be moving at a moderate rate of 2–3 miles per hour with frequent brief stops as we encounter native plants and signs of animals. Some of the hills are strenuous and we will take breaks as needed. Participants must be in good physical condition, have a good attitude, and wear sturdy closed-toe shoes.

Learning Objectives

Brief trailside presentations will cover skills useful for independently enjoying the open spaces during wilderness access days including map & compass use, animal & plant identification, hazards & safety, Leave No Trace principles, and conservation service project opportunities.

Specifics for Scouts

Each registered Scouting program adult volunteer may sign up as a household with up to four participating youth under their supervision. Scouting program participants will have the opportunity for experiential learning in the following areas:

Girl Scouts USA journeys: Trail Adventure, Eco Trekker
ScoutsBSA requirements: 2nd class 3a–c, 4; 1st class 4b, 5a; Nature merit badge 4–6
Age: 10 or older. Participants under 18 must be accompanied by a parent or guardian. See ‘Specific for Scouts’ section above for exceptions.

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: 3/5

Materials: Please come prepared with the trail essentials: a backpack, plenty of water (at least 1 liter), snacks, sturdy closed-toe hiking shoes or boots, sun protection, first aid kit, and any other supplies to keep you safe and healthy on the trail. Each hiker must carry their own water and supplies. Under-prepared participants may be denied access to the event.

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.

Scouting Out Nature: the Coastal Sage Scrub habitat of Shady Canyon
Date:
Sat, 06/21/2025
Time:
8:00 am - 11:00 am
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
3
Minimum Age:
10
More Information  

Trail Stewardship – Sunflower

Trail Work
Trail Work

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: 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: Free parking for volunteers at James Dilley Preserve parking lot. 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.

Trail Stewardship – Sunflower
Date:
Sat, 06/21/2025
Time:
8:00 am - 12:00 pm
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
3
Minimum Age:
16
More Information  

Wilderness Access Day: Bommer Canyon

Special Events
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.

Wilderness Access Day: Bommer Canyon
Date:
Sat, 06/21/2025
Time:
8:00 am - 2:00 pm
Where:
Bommer Canyon Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Wilderness Access Day: Red Rock Wilderness

Wilderness Access Day: Red Rock Wilderness

Come explore OC Parks’ newest trails at Red Rock Wilderness through this self-guided opportunity.

Located within OC Parks’ Irvine Ranch Open Space, Red Rock Wilderness features more than 8 miles of new trails for hiking, mountain biking and horseback riding along with a scenic overlook that offers 360-degree views of the nearby iconic red rocks, Black Star Canyon Wilderness, Irvine Lake, Santiago Canyon and beyond. 3 miles of multi-use trails within Loma Ridge Nature Preserve, part of OC Parks’ Irvine Ranch Open Space, will also be accessible for hiking, mountain biking and horseback riding.

Visitors will have the opportunity to provide voluntary feedback about Red Rock Wilderness through on-site participation surveys and offer naming suggestions for several unnamed trails.

Rain or inclement weather will cancel the program. Advance registration required. Learn more and register here.

Wilderness Access Day: Red Rock Wilderness
Date:
Sat, 06/21/2025
Time:
8:00 am - 2:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Wilderness Access Day: Red Rock Wilderness, Equestrian

Equestrian
Wilderness Access Day: Red Rock Wilderness, Equestrian

Come explore OC Parks’ newest trails at Red Rock Wilderness through this self-guided opportunity.

Located within OC Parks’ Irvine Ranch Open Space, Red Rock Wilderness features more than 8 miles of new trails for hiking, mountain biking and horseback riding along with a scenic overlook that offers 360-degree views of the nearby iconic red rocks, Black Star Canyon Wilderness, Irvine Lake, Santiago Canyon and beyond. 3 miles of multi-use trails within Loma Ridge Nature Preserve, part of OC Parks’ Irvine Ranch Open Space, will also be accessible for hiking, mountain biking and horseback riding.

Visitors will have the opportunity to provide voluntary feedback about Red Rock Wilderness through on-site participation surveys and offer naming suggestions for several unnamed trails.

Rain or inclement weather will cancel the program. Advance registration required. Learn more and register here.

Wilderness Access Day: Red Rock Wilderness, Equestrian
Date:
Sat, 06/21/2025
Time:
8:00 am - 2:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Family Hike: Baker Canyon

Interpretive
Family Hike: Baker Canyon

Enjoy an afternoon family hike in Baker Canyon, part of OC Parks’ Irvine Ranch Open Space. We will hike along a flat trail as we watch for red-tailed hawks and mule deer. The hike will average 2 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.

Family Hike: Baker Canyon
Date:
Sat, 06/21/2025
Time:
5:30 pm - 8:00 pm
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
5
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Keep It Wild – Laguna Coast

Stewardship
Keep It Wild - Laguna Coast

Join Laguna Canyon Foundation and OC Parks at one of our habitat restoration stewardship events in Laguna Coast Wilderness Park as we learn and work together to create a healthier habitat for the native plants and wildlife that call the canyon their home. Depending on the time of year, volunteers will assist with various stewardship activities, including removal of non-native plants, 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: Nix Nature Center, Laguna Coast Wilderness Park (18751 Laguna Canyon Road, Laguna Beach 92651, East side of Laguna Canyon Rd/SR-133).

Parking: Free parking for Keep It Wild volunteers at Nix Nature Center parking lot. 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 with any questions.

Weather, including high temperatures and wet or muddy trail conditions, may lead to cancellation of this event.

Keep It Wild - Laguna Coast
Date:
Sat, 06/21/2025
Time:
5:30 pm - 7:30 pm
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
16
More Information  

Bats: Heroes of the Night

Interpretive
Bats: Heroes of the Night

As the day starts to settle into the night in OC Parks’ Irvine Ranch Open Space, bats awaken, stir and streak into the evening sky. Come hear fascinating tales of our flying mammal. We will head out towards a popular roosting location as we watch our nighttime heroes begin their nightly adventures. This program is ideal to visually observe the bats in flight, though bat detectors are available to listen for their high-frequency calls. Be prepared to walk about 1/2 a mile. Dress warmly as it may be a chilly evening. A camping chair is welcome as we will have a short introductory presentation in the staging area before the walk.

Bats: Heroes of the Night
Date:
Sat, 06/21/2025
Time:
7:00 pm - 9:00 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
1
Distance:
2 miles
Minimum Age:
5
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2025
More Information  

Sunday, June 22, 2025

Sunday Fitness Hike at Hicks Haul

Hiking & Fitness
Sunday Fitness Hike at Hicks Haul

Join us Sunday morning in OC Parks’ 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.

Sunday Fitness Hike at Hicks Haul
Date:
Sun, 06/22/2025
Time:
6:30 am - 9:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
8.5 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 06/07/2025
More Information  

Bommer Canyon East Fork and Ridge Route Loop Hike

Hiking & Fitness
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.

Bommer Canyon East Fork and Ridge Route Loop Hike
Date:
Sun, 06/22/2025
Time:
7:00 am - 9:30 am
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 06/07/2025
More Information  

Weir Canyon Fitness Hike: Oaks to Overlook Loop

Hiking & Fitness
Weir Canyon Fitness Hike: Oaks to Overlook Loop

Enjoy miles of lush oak studded canyons, fascinating rock formations and sweeping views from the Overlook Trail in the tranquility of the Weir Canyon back country, part of OC Parks’ Irvine Ranch Open Space. On a clear day we’ll be rewarded with glorious views of the San Gabriel and Santa Ana mountains. This is a fitness hike and features an 1800 ft accumulated elevation gain. There are multiple steep climbs and steep descents. Please make sure you are in excellent physical condition! You must be able to hike uphill at an average pace of 3 mph without stopping. A backpack and water are required. Please bring snack, sun screen, hat and wear sturdy closed-toe shoes.

Weir Canyon Fitness Hike: Oaks to Overlook Loop
Date:
Sun, 06/22/2025
Time:
7:00 am - 11:00 am
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
4
Distance:
9.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 06/07/2025
More Information  

Moderate-Paced Mountain Bike Ride: Fremont, Blind, Weir Canyon

Mountain Biking
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 recreational use.

Moderate-Paced Mountain Bike Ride: Fremont, Blind, Weir Canyon
Date:
Sun, 06/22/2025
Time:
8:00 am - 11:30 am
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
5
Distance:
15 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 06/07/2025
More Information  

Evening Family Beginner Mountain Bike Ride: Limestone Canyon to The Sinks

Mountain Biking
Evening Family Beginner Mountain Bike Ride: Limestone Canyon to The Sinks

For families and children ages 12 and up who would like to join IRC-certified volunteers in OC Parks’ Irvine Ranch Open Space on a longer, slow-paced, family-oriented ride through sycamores, oaks, and habitat native to California. The route takes us to The Sinks, Orange County’s own “Grand Canyon.” Along the way, we will stop and talk about the local habitat, and hope to see some of our local native animals and raptors. The ride is an 8-9 miles with 400-800 feet of elevation gain that may require hike-a‐bike for some riders. Motorized recreation vehicles of any class or type are not permitted for recreational use.

Evening Family Beginner Mountain Bike Ride: Limestone Canyon to The Sinks
Date:
Sun, 06/22/2025
Time:
5:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 06/07/2025
More Information  
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