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.

    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.

Sunday, December 15, 2019

Distance Hike: Bommer to the Sea

Hiking & Fitness

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 […]

Distance Hike:  Bommer to the Sea
Date:
Sun, 12/15/2019
Time:
7:15 AM - 1:15 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Saturday, December 21, 2019

Wilderness Access Day: Bommer Canyon

Special Events

Special Note: Cattle Camp is currently under renovation and space for parking in the corral is reduced. Carpooling is highly recommended and appreciated during this time. 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 […]

Wilderness Access Day: Bommer Canyon
Date:
Sat, 12/21/2019
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
n/a
Family Friendly:
Yes
Spaces Left:
14 of 200
More Information  

Sunday, January 5, 2020

Distance Hike: Bommer to the Sea

Hiking & Fitness

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 […]

Distance Hike: Bommer to the Sea
Date:
Sun, 01/05/2020
Time:
7:15 AM - 1:15 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
9 of 15
More Information  

Wednesday, January 8, 2020

Youth Action Team Stewardship at Bommer Canyon

Stewardship

The Youth Action Team, an after school community-service based program throughout the City of Irvine regularly volunteers their time to steward the Irvine Ranch Natural Landmarks. This week, middle school students will spend their morning helping to enhance Bommer Canyon! Stewardship activities can include planting native species to enhance the habitat, planting cactus to close social trails, […]

Youth Action Team Stewardship at Bommer Canyon
Date:
Wed, 01/08/2020
Time:
3:30 PM - 4:45 PM
Where:
Bommer Canyon
Difficulty Rating:
2
Minimum Age:
13
More Information  

Thursday, January 9, 2020

Twilight Yoga Hike in Bommer Canyon

Hiking & Fitness

Enjoy a short hike and a gentle yoga practice in nature. A short but steep climb at a medium fast pace takes us to a 360-degree view of OC where we indulge in an evening yoga flow under a setting sun. A short hike under a darkening sky takes us back. Bring water, a yoga […]

Twilight Yoga Hike in Bommer Canyon
Date:
Thu, 01/09/2020
Time:
2:00 PM - 5:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
16
Spaces Left:
12 of 15
More Information  

Friday, January 10, 2020

Full Moon Hike: Bommer Canyon

Interpretive

If you’ve ever wondered what happens in the open space when the sun goes down, then sign up for the popular full moon hike. Experience the serenity of a moonlit night in Bommer Canyon. This hike is just over 3 miles and includes 700 feet of total climbing elevation with several very steep inclines. The […]

Full Moon Hike: Bommer Canyon
Date:
Fri, 01/10/2020
Time:
4:30 PM - 7:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
8
Spaces Left:
9 of 25
More Information  

Tuesday, January 14, 2020

Bommer Canyon Habitat Restoration

Stewardship

Come get your hands dirty and learn about the restoration process. Please join IRC staff and volunteers in helping restore degraded habitat to pristine habitat in Bommer Canyon, once home to a working cattle ranch. Habitat restoration is important for returning native wildlife and plant species to an area as well as improving ecosystem processes. […]

Bommer Canyon Habitat Restoration
Date:
Tue, 01/14/2020
Time:
9:00 AM - 12:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
2 miles
Minimum Age:
18
Spaces Left:
3 of 3
More Information  

Wednesday, January 15, 2020

Mid Week Hike: Bommer Canyon

Hiking & Fitness

Recharge your batteries with a refreshing mid-week hike through Bommer Canyon. This area was historically a center for cattle operations that occurred in the San Joaquin Hills up until the late 1990s, and is now part of the Open Space Preserve. This hike involves multiple steep climbs and descents across a variety of trail types, […]

Mid Week Hike: Bommer Canyon
Date:
Wed, 01/15/2020
Time:
8:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
4
Distance:
12 miles
Minimum Age:
18
Spaces Left:
19 of 20
More Information  

Saturday, January 18, 2020

Wilderness Access Day: Bommer Canyon

Special Events

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 […]

Wilderness Access Day: Bommer Canyon
Date:
Sat, 01/18/2020
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
12
Family Friendly:
Yes
Spaces Left:
Full
More Information  

Monday, January 20, 2020

Nurture the Bommer Canyon Nature Garden

Stewardship

Help us nurture the native garden in Cattle Camp. Your support is essential to keeping the garden looking healthy, by planting native shrubs to enhance the garden and restore native habitat. If you love gardening, this is an excellent way to give back. This garden features native plants that call our community home and it […]

Nurture the Bommer Canyon Nature Garden
Date:
Mon, 01/20/2020
Time:
9:45 AM - 12:15 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Minimum Age:
18
Spaces Left:
Full
More Information  

Monday, February 3, 2020

Nurture the Bommer Canyon Nature Garden

Stewardship

Help us nurture the native garden in Cattle Camp. Your support is essential to keeping the garden looking healthy, by planting native shrubs to enhance the garden and restore native habitat. If you love gardening, this is an excellent way to give back. This garden features native plants that call our community home and it […]

Nurture the Bommer Canyon Nature Garden
Date:
Mon, 02/03/2020
Time:
9:30 AM - 12:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Minimum Age:
18
Spaces Left:
Full
More Information  

Thursday, February 6, 2020

Thursday Morning Trek: Bommer Canyon

Hiking & Fitness

This week in the Irvine Open Space, 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, […]

Thursday Morning Trek: Bommer Canyon
Date:
Thu, 02/06/2020
Time:
8:00 AM - 11:30 AM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Twilight Yoga Hike in Bommer Canyon

Hiking & Fitness

Enjoy a short hike and a gentle yoga practice in nature. A short but steep climb at a medium fast pace takes us to a 360-degree view of OC where we indulge in an evening yoga flow under a setting sun. A short hike under a darkening sky takes us back. Bring water, a yoga […]

Twilight Yoga Hike in Bommer Canyon
Date:
Thu, 02/06/2020
Time:
2:30 PM - 5:30 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Saturday, February 8, 2020

Distance Hike: Bommer Canyon

Hiking & Fitness

The title says it all. This is your chance to venture deep in the Irvine backcountry. Join us for a challenging and beautiful adventure. 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 […]

Distance Hike: Bommer Canyon
Date:
Sat, 02/08/2020
Time:
7:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Sunday, February 9, 2020

Full Moon Hike: Bommer Canyon

Interpretive

If you’ve ever wondered what happens in the open space when the sun goes down, then sign up for the popular full moon hike. Experience the serenity of a moonlit night in Bommer Canyon. This hike is just over 3 miles and includes 700 feet of total climbing elevation with several very steep inclines. The […]

Full Moon Hike: Bommer Canyon
Date:
Sun, 02/09/2020
Time:
5:30 PM - 8:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
8
Spaces Left:
Full
More Information  

Tuesday, February 11, 2020

Bommer Canyon Habitat Restoration

Stewardship

Come get your hands dirty and learn about the restoration process. Please join IRC staff and volunteers in helping restore degraded habitat to pristine habitat in Bommer Canyon, once home to a working cattle ranch. Habitat restoration is important for returning native wildlife and plant species to an area as well as improving ecosystem processes. […]

Bommer Canyon Habitat Restoration
Date:
Tue, 02/11/2020
Time:
9:00 AM - 12:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
2 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Wednesday, February 12, 2020

Mid Week Hike: Bommer Canyon

Hiking & Fitness

Recharge your batteries with a refreshing mid-week hike through Bommer Canyon. This area was historically a center for cattle operations that occurred in the San Joaquin Hills up until the late 1990s, and is now part of the Open Space Preserve. This hike involves multiple steep climbs and descents across a variety of trail types, […]

Mid Week Hike: Bommer Canyon
Date:
Wed, 02/12/2020
Time:
8:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
4
Distance:
12 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Saturday, February 15, 2020

Wilderness Access Day: Bommer Canyon

Special Events

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 […]

Wilderness Access Day: Bommer Canyon
Date:
Sat, 02/15/2020
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
12
Family Friendly:
Yes
Spaces Left:
Full
More Information  

Sunday, February 16, 2020

Distance Hike: Bommer to the Sea

Hiking & Fitness

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 […]

Distance Hike:  Bommer to the Sea
Date:
Sun, 02/16/2020
Time:
7:15 AM - 1:15 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Monday, March 2, 2020

Nurture the Bommer Canyon Nature Garden

Stewardship

Help us nurture the native garden in Cattle Camp. Your support is essential to keeping the garden looking healthy, by planting native shrubs to enhance the garden and restore native habitat. If you love gardening, this is an excellent way to give back. This garden features native plants that call our community home and it […]

Nurture the Bommer Canyon Nature Garden
Date:
Mon, 03/02/2020
Time:
10:00 AM - 12:30 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Minimum Age:
18
Spaces Left:
Full
More Information  
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