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.

Wednesday, October 16, 2019

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, 10/16/2019
Time:
8:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
4
Distance:
12 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

Thursday, October 17, 2019

Nurture the Bommer Canyon Nature Garden

Stewardship

Help us nurture the Native Nature Garden in Cattle Camp. Your support is essential to keeping the garden looking healthy, by removing weeds and trimming back vegetation growing onto the trail. 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:
Thu, 10/17/2019
Time:
9:00 AM - 11:30 AM
Where:
Bommer Canyon
Difficulty Rating:
3
Minimum Age:
18
Spaces Left:
Full
More Information  

Saturday, October 19, 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, 10/19/2019
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
n/a
Family Friendly:
Yes
Spaces Left:
123 of 200
More Information  

Sunday, October 20, 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, 10/20/2019
Time:
7:15 AM - 1:15 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
1 of 15
More Information  

Monday, November 4, 2019

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:
Mon, 11/04/2019
Time:
2:00 PM - 5:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
16
Spaces Left:
1 of 15
More Information  

Thursday, November 7, 2019

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:
Thu, 11/07/2019
Time:
10:00 AM - 12:30 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Minimum Age:
18
Spaces Left:
8 of 10
More Information  

Tuesday, November 12, 2019

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, 11/12/2019
Time:
9:00 AM - 12:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
2 miles
Minimum Age:
18
Spaces Left:
Full
More Information  

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:
Tue, 11/12/2019
Time:
5:00 PM - 7:30 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
8
Spaces Left:
Full
More Information  

Wednesday, November 13, 2019

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, 11/13/2019
Time:
8:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
4
Distance:
12 miles
Minimum Age:
18
Spaces Left:
14 of 20
More Information  

Thursday, November 14, 2019

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, 11/14/2019
Time:
8:00 AM - 11:30 AM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Saturday, November 16, 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, 11/16/2019
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
n/a
Family Friendly:
Yes
Spaces Left:
151 of 200
More Information  

Sunday, November 17, 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, 11/17/2019
Time:
7:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
1 of 15
More Information  

Thursday, November 21, 2019

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:
Thu, 11/21/2019
Time:
10:00 AM - 12:30 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Minimum Age:
18
Spaces Left:
9 of 10
More Information  

Monday, December 9, 2019

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:
Mon, 12/09/2019
Time:
2:00 PM - 5:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
16
Spaces Left:
3 of 15
More Information  

Tuesday, December 10, 2019

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, 12/10/2019
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, December 11, 2019

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, 12/11/2019
Time:
8:00 AM - 1:00 PM
Where:
Bommer Canyon
Difficulty Rating:
4
Distance:
12 miles
Minimum Age:
18
Spaces Left:
13 of 20
More Information  

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:
Wed, 12/11/2019
Time:
4:30 PM - 7:00 PM
Where:
Bommer Canyon
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
8
Spaces Left:
4 of 25
More Information  

Saturday, December 14, 2019

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, 12/14/2019
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
12 of 20
More Information  

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:
1 of 15
More Information  
1 2