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.

Click here to learn more about IRC-Certified Volunteers.    •   Click here to learn more about the Difficulty Ratings.

Search & Filter Activities

Found 22 Events

Friday, May 17, 2024

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 and should be able to hike steep hills.

Bommer Canyon East Fork and Ridge Route Loop Hike
Date:
Fri, 05/17/2024
Time:
6:00 PM - 8:00 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
18
Spaces Left:
Registration has closed.
More Information  

Saturday, May 18, 2024

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, 05/18/2024
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:
107 of 200
More Information  

Sunday, May 19, 2024

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, 05/19/2024
Time:
7:30 AM - 10:00 AM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
17 of 20
More Information  

Thursday, May 23, 2024

Bommer Canyon Preserve Full Moon Hike

Hiking & Fitness
Bommer Canyon Preserve Full Moon Hike

Experience the serenity of Bommer Canyon Preserve under a full moon during this moderate-paced hike in the Irvine Open Space Preserve. We’ll experience mature coastal sage scrub and fantastic sunset 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 Preserve Full Moon Hike
Date:
Thu, 05/23/2024
Time:
8:00 PM - 10:30 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
Full
More Information  

Thursday, May 30, 2024

Thursday Morning Trek: Bommer Canyon

Hiking & Fitness
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.

Thursday Morning Trek: Bommer Canyon
Date:
Thu, 05/30/2024
Time:
7:30 AM - 11:00 AM
Where:
Bommer Canyon Preserve
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
10 of 20
More Information  

Group Stewardship: Monarch Butterfly Stewardship in Bommer Canyon

Stewardship
Group Stewardship: Monarch Butterfly Stewardship in Bommer Canyon

Please join IRC staff and Saint Joseph’s Ministry to water milkweed and nectar plants for the Monarch butterfly in Bommer Canyon. With your help we will create islands of Milkweed and nectar plants that will help support the seasonal migration of Monach butterflies. We may be using shovels and small handheld tools. No experience necessary.

Group Stewardship: Monarch Butterfly Stewardship in Bommer Canyon
Date:
Thu, 05/30/2024
Time:
9:30 AM - 11:30 AM
Where:
Bommer Canyon Preserve
Difficulty Rating:
2
Distance:
0.5 miles
Minimum Age:
15
More Information  

Sunday, June 2, 2024

Advanced Distance Hike: Bommer Canyon

Hiking & Fitness
Advanced Distance Hike: Bommer Canyon

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. 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 over 2,400 feet of accumulated climbing elevation. Most months, the route stays in the Irvine Open Space Preserve for its entirety, but will occasionally feature hiking to the sea and back: 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.

Advanced Distance Hike: Bommer Canyon
Date:
Sun, 06/02/2024
Time:
7:00 AM - 1:00 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 05/18/2024
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, 06/02/2024
Time:
7:30 AM - 10:00 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 05/18/2024
More Information  

Friday, June 7, 2024

Bommer Canyon Exploration Day

Special Events
Bommer Canyon Exploration Day

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 1 pm. This includes the single tracks in Shady Canyon and Bommer Canyon that are reserved for guided activities only. Registration is required for this event. 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 1 pm.

Bommer Canyon Exploration Day
Date:
Fri, 06/07/2024
Time:
8:00 AM - 1:00 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 05/23/2024
More Information  

CANCELLED: Bommer Canyon East Fork and Ridge Route Loop Hike

Hiking & Fitness
CANCELLED: 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 and should be able to hike steep hills.

CANCELLED: Bommer Canyon East Fork and Ridge Route Loop Hike
Date:
Fri, 06/07/2024
Time:
6:00 PM - 8:30 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 05/23/2024
More Information  

Tuesday, June 11, 2024

Bommer Canyon to Butterfly Valley Hike

Hiking & Fitness
Bommer Canyon to Butterfly Valley Hike

Join us as we explore the Irvine Open Space Preserve on this hike through Bommer and Shady Canyons. We’ll begin at the Cattle Camp, where ranch equipment of old still stands. After a steep ascent on the East Fork trail, we’ll make our way across part of Serrano Ridge and descend into Shady Canyon to the Butterfly Valley trail. Here, you’ll experience some of the most mature Coastal Sage Scrub in all of Orange County. After a short stop we’ll return the same way. Total round trip distance is 9 miles with an elevation gain of 1500 feet at an average moving rate of 2.5 miles per hour. All participants must carry their own water! Please come prepared with a pack, plenty of water, snacks, sturdy closed-toe hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail. Under-prepared participants may be denied access to the event!

Bommer Canyon to Butterfly Valley Hike
Date:
Tue, 06/11/2024
Time:
7:30 AM - 12:30 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
4
Distance:
9 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 05/27/2024
More Information  

Wednesday, June 12, 2024

Mid-Week Distance Hike: Bommer Canyon

Hiking & Fitness
Mid-Week Distance Hike: Bommer Canyon

Take a break and get some fresh air! Join us on a mid-week hike through Bommer Canyon and Shady Canyon or Laguna Coast Wilderness Park. This program is for those who just want to get out and hike away the stresses of the week. Enjoy the views and a little quiet time in Irvine’s beautiful Open Space Preserve. Several single-track trails, steep climbs and descents are part of the experience. There is over 2200 ft. of climbing elevation accumulated along the route, but it is done with a moderate pace, approximately 3 mph. Distance is 12-14 miles. Bring plenty of water (100 oz. minimum recommended) and wear comfortable, sturdy shoes. We will be meeting at the Bommer Canyon Cattle Camp.

Mid-Week Distance Hike: Bommer Canyon
Date:
Wed, 06/12/2024
Time:
6:30 AM - 1:00 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
5
Distance:
14 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 05/28/2024
More Information  

Friday, June 14, 2024

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 and should be able to hike steep hills.

Bommer Canyon East Fork and Ridge Route Loop Hike
Date:
Fri, 06/14/2024
Time:
6:00 PM - 8:00 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 05/30/2024
More Information  

Saturday, June 15, 2024

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, 06/15/2024
Time:
8:00 AM - 2:00 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 8:00am on 05/31/2024
More Information  

Sunday, June 16, 2024

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, 06/16/2024
Time:
7:30 AM - 10:00 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 06/01/2024
More Information  

Wednesday, June 19, 2024

Wee Wonder Walks: Daylight, Starlight

Interpretive
Wee Wonder Walks: Daylight, Starlight

Hawks to owls, rabbits to opossums, butterflies to moths…daylight creatures have friends that match them at night! Hear a fun tale about diurnal and nocturnal critters and make a fun craft to take home.

This activity is perfect for wee little ones, 2-6 years of age. We will spend the first half of the morning enjoying our nature topic, then make a craft or listen to a story, and end by exploring the trails on an easy-paced walk that is suitable for little eager feet. Parents/guardians must register along with their child(ren).

Wee Wonder Walks: Daylight, Starlight
Date:
Wed, 06/19/2024
Time:
10:00 AM - 11:00 AM
Where:
Bommer Canyon Preserve
Difficulty Rating:
1
Distance:
0.5 miles
Minimum Age:
2
Spaces Left:
Registration for this event opens at 8:00am on 06/04/2024
More Information  

Friday, June 21, 2024

Nature Journaling in Bommer Canyon

Interpretive
Nature Journaling in Bommer Canyon

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.

Nature Journaling in Bommer Canyon
Date:
Fri, 06/21/2024
Time:
9:00 AM - 11:00 AM
Where:
Bommer Canyon Preserve
Difficulty Rating:
1
Distance:
1.5 miles
Minimum Age:
14
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2024
More Information  

Bommer Canyon Preserve Full Moon Hike

Hiking & Fitness
Bommer Canyon Preserve Full Moon Hike

Experience the serenity of Bommer Canyon Preserve under a full moon during this moderate-paced hike in the Irvine Open Space Preserve. We’ll experience mature coastal sage scrub and fantastic sunset 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 Preserve Full Moon Hike
Date:
Fri, 06/21/2024
Time:
8:00 PM - 10:30 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
Registration for this event opens at 8:00am on 06/06/2024
More Information  

Wednesday, June 26, 2024

Plants Among Us: Learning About Plants at Bommer Canyon Preserve

Interpretive
Plants Among Us: Learning About Plants at Bommer Canyon Preserve

Curious to learn about the plants among us, who’s sus and who’s not? Join us for a hike at the Bommer Canyon Preserve, part of City of Irvine’s Irvine Ranch Open Space, where we’ll look at local flora, talk about native and non-native species, and learn how different plants impact our ecosystems. Learning to identify plants, both native and non-native, is a great way to cultivate a relationship to our local wildlands.  

This hike will either take us up Ridge Route or East Fork trail, not the entire loop. This activity is geared towards participants who are curious about our local plants and ecosystem. Please bring water and all items needed to keep you safe during our walk. Hats and sunscreen are highly recommended.

Plants Among Us: Learning About Plants at Bommer Canyon Preserve
Date:
Wed, 06/26/2024
Time:
6:00 PM - 7:45 PM
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
6
Spaces Left:
Registration for this event opens at 8:00am on 06/11/2024
More Information  

Thursday, June 27, 2024

Butterfly Series: Monarch Butterfly Stewardship in Bommer Canyon

Stewardship
Butterfly Series: Monarch Butterfly Stewardship in Bommer Canyon

Please join IRC staff water milkweed and nectar plants for the Monarch butterfly in Bommer Canyon. With your help we will create islands of Milkweed and nectar plants that will help support the seasonal migration of Monach butterflies. We may be using shovels and small handheld tools. No experience necessary.

Butterfly Series: Monarch Butterfly Stewardship in Bommer Canyon
Date:
Thu, 06/27/2024
Time:
9:00 AM - 10:30 AM
Where:
Bommer Canyon Preserve
Difficulty Rating:
2
Distance:
0.5 miles
Minimum Age:
15
Spaces Left:
Registration for this event opens at 8:00am on 06/12/2024
More Information  
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