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.

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Found 550 Events

Monday, June 30, 2025

Slow Paced Hike Exploring Spring Wildflowers in Bloom

Interpretive
Slow Paced Hike Exploring Spring Wildflowers in Bloom

Join us for a slow-paced hike in Irvine Ranch Open Space, specifically Limestone Canyon. Our pace will be around 2.5 MPH for this 5.5-mile hike with an elevation gain of about 400 feet. Slowing our pace will encourage us to experience the land with all of our senses. We will be able to see, smell and hear the sounds of the Open Space! If you enjoy recording your sightings of wildflowers, please download the App called SEEK (INaturalist) prior to reaching the Augustine Staging area. We will use SEEK to identify native and non-native wildflowers. Our hike will take us along Limestone Canyon and then over to Dripping Springs. Dripping Springs is a year-round spring where we will encounter water that is expressed through the side of a vertical rock face. Due to shade and moisture, we will find that the plants in Dripping Springs are very different from the plants and flowers found in the meadow area of Limestone Canyon.

Slow Paced Hike Exploring Spring Wildflowers in Bloom
Date:
Mon, 06/30/2025
Time:
8:00 am - 11:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
5.5 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 06/15/2025
More Information  

After Work Fitness Hike on Paved Hicks Haul Road

Hiking & Fitness
After Work Fitness Hike on Paved Hicks Haul Road

Join us every Monday night for a fitness-focused hike on the paved Hicks Haul Road in the Irvine Open Space Preserve. 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 about 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Mon, 06/30/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 06/15/2025
More Information  

Friday, July 25, 2025

Jr. Ranger Adventure: Irvine Regional Park

Interpretive
Jr. Ranger Adventure: Irvine Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Irvine Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge. This program will begin outside the Nature Center.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Irvine Regional Park
Date:
Fri, 07/25/2025
Time:
3:30 pm - 5:00 pm
Where:
Irvine Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 07/11/2025
More Information  

Saturday, July 26, 2025

Create in the Park: Get Out and Sketch

Interpretive
Create in the Park: Get Out and Sketch

Join OC Parks at George Key Ranch Historic Park for Create in the Park! Professional artist, Dori Dewberry, guides you through the basics of sketching in plein air. Keep it simple with a sketchbook and pencil as you explore the tranquil gardens, citrus grove, farm equipment and historic home. Experienced artists are also welcome to join to sketch the park and share successes at the end of the session. A guided tour about the history of Key Ranch will also be included.

This program is designed for ages 12 and older. Materials
are not provided, only art instruction. A list of recommended
materials will be made available to all registered participants
in advance of the program. Sun protection, water and snacks
are recommended.

This program is free with free parking, but reservations
are required due to limited parking on-site. To RSVP, visit
OCParks.com for more information or contact the park office
at keyranch@ocparks.com.

Create in the Park: Get Out and Sketch
Date:
Sat, 07/26/2025
Time:
9:00 am - 12:00 pm
Where:
George Key Ranch Historical Park
Difficulty Rating:
1
Minimum Age:
12
Spaces Left:
20 of 20
More Information  

Friday, August 29, 2025

Jr. Ranger Adventure: Peters Canyon Regional Park

Interpretive
Jr. Ranger Adventure: Peters Canyon Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Peters Canyon Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge.

This program will begin at the southern entrance to the the park located at the end of Peters Canyon Rd. near Peters Canyon Elementary School.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking in the lot is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required. Learn more and register here.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Peters Canyon Regional Park
Date:
Fri, 08/29/2025
Time:
3:30 pm - 5:00 pm
Where:
Peters Canyon Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 08/15/2025
More Information  

Friday, September 26, 2025

Jr. Ranger Adventure: Santiago Oaks Regional Park

Interpretive
Jr. Ranger Adventure: Santiago Oaks Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Santiago Oaks Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge. This program will begin outside the Nature Center.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Santiago Oaks Regional Park
Date:
Fri, 09/26/2025
Time:
3:30 pm - 5:00 pm
Where:
Santiago Oaks Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 09/12/2025
More Information  

Friday, October 24, 2025

Jr. Ranger Adventure: Irvine Regional Park

Interpretive
Jr. Ranger Adventure: Irvine Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Irvine Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge. This program will begin outside the Nature Center.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Irvine Regional Park
Date:
Fri, 10/24/2025
Time:
3:30 pm - 5:00 pm
Where:
Irvine Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 10/10/2025
More Information  

Friday, November 28, 2025

Jr. Ranger Adventure: Peters Canyon Regional Park

Interpretive
Jr. Ranger Adventure: Peters Canyon Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Peters Canyon Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge.

This program will begin at the southern entrance to the the park located at the end of Peters Canyon Rd. near Peters Canyon Elementary School.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking in the lot is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Peters Canyon Regional Park
Date:
Fri, 11/28/2025
Time:
3:30 pm - 5:00 pm
Where:
Peters Canyon Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 11/14/2025
More Information  

Friday, December 26, 2025

Jr. Ranger Adventure: Santiago Oaks Regional Park

Interpretive
Jr. Ranger Adventure: Santiago Oaks Regional Park

The OC Parks Jr. Ranger Program encourages park guests to explore the outdoor world within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.

Participants will explore Santiago Oaks Regional Park, complete activities and take the OC Parks Jr. Ranger Oath to earn a unique Jr. Ranger badge. This program will begin outside the Nature Center.

This program is designed for ages 7 to 12, but all are welcome.

Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear and water are recommended.

The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.

Advance registration is required.

For questions, please contact Resource Specialist Shelly Marshall at shelly.marshall@ocparks.com.

Jr. Ranger Adventure: Santiago Oaks Regional Park
Date:
Fri, 12/26/2025
Time:
3:30 pm - 5:00 pm
Where:
Santiago Oaks Regional Park
Difficulty Rating:
1
Minimum Age:
All Ages
Spaces Left:
Registration for this event opens at 12:00am on 12/12/2025
More Information  

Tuesday, March 28, 2028

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:
Tue, 03/28/2028
Time:
5:00 pm - 7:00 pm
Where:
Bommer Canyon Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
18
Spaces Left:
25 of 25
More Information  
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