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.

Thursday, December 19, 2019

Thursday Morning Trek: Baker Canyon

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in Baker Canyon. This scenic hike includes steep climbs and descents on both single and double-track trails with about 1100 feet of accumulated climbing. We will enjoy sweeping views of the Irvine Ranch Natural Landmarks and the Santa Ana Mountains. On clear days, we can […]

Thursday Morning Trek: Baker Canyon
Date:
Thu, 12/19/2019
Time:
8:00 AM - 11:00 AM
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
12
Spaces Left:
1 of 25
More Information  

Thursday, January 2, 2020

Thursday Morning Trek: Limestone Canyon and Dripping Springs

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in Limestone Canyon to Dripping Springs. The hike is 7-mile loop hike which includes some hills and descents. In addition to the springs, we will enjoy panoramic views of the wildlands from East Loma. Please bring water, a trail snack, sun screen, hat, and any […]

Thursday Morning Trek: Limestone Canyon and Dripping Springs
Date:
Thu, 01/02/2020
Time:
8:00 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, January 9, 2020

Thursday Morning Trek: Orchard Hills

Hiking & Fitness

Join us for a challenging and beautiful adventure as we hike to the Hangman’s Tree Monument on Loma Ridge. Hike distance is 6 miles and affords fantastic views along the way, spanning the Pacific coastline, San Gabriel peaks and the Santa Ana Mountains. Several very steep climbs and descents are part of this route. We’ll […]

Thursday Morning Trek: Orchard Hills
Date:
Thu, 01/09/2020
Time:
8:00 AM - 11:00 AM
Where:
Orchard Hills
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Spaces Left:
12 of 20
More Information  

Thursday, January 16, 2020

Thursday Morning Trek: Fremont Canyon

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in the remote Fremont Canyon. The hike is just under 6 miles and includes a steep hill. We will hike from the mouth of Fremont Canyon, past a historic coal mine, to the Fremont Weather Station. After enjoying a spectacular view, we will hike back […]

Thursday Morning Trek: Fremont Canyon
Date:
Thu, 01/16/2020
Time:
8:00 AM - 11:00 AM
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, January 23, 2020

Thursday Morning Trek: Agua Chinon and The Sinks

Hiking & Fitness

Come out and join us on a breathtaking hike from the Irvine Open Space Preserve into OC Parks’ Limestone Canyon. This week’s docent-led hike begins in the Agua Chinon wash, continues to The Sinks, and may include a side trip to Box Springs, a natural year-round source of fresh water. Maximum distance is just short […]

Thursday Morning Trek: Agua Chinon and The Sinks
Date:
Thu, 01/23/2020
Time:
8:00 AM - 11:30 AM
Where:
Irvine Open Space Preserve
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, January 30, 2020

Thursday Morning Trek: Baker Canyon

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in Baker Canyon. This scenic hike includes steep climbs and descents on both single and double-track trails with about 1100 feet of accumulated climbing. We will enjoy sweeping views of the Irvine Ranch Natural Landmarks and the Santa Ana Mountains. On clear days, we can […]

Thursday Morning Trek: Baker Canyon
Date:
Thu, 01/30/2020
Time:
8:00 AM - 11:00 AM
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
12
Spaces Left:
18 of 25
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  

Thursday, February 13, 2020

Thursday Morning Super Trek: Weir Canyon to the Overlook Trail

Hiking & Fitness

Do you like the pace of the Thursday Morning Treks, but want to go a little longer distance? Join us this morning for a hike in Weir Canyon to the Overlook Trail. We will hike through coastal sage scrub and oak woodlands and up the Overlook Trail. On a clear day, we will be rewarded […]

Thursday Morning Super Trek: Weir Canyon to the Overlook Trail
Date:
Thu, 02/13/2020
Time:
8:00 AM - 12:30 PM
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
4
Distance:
9.5 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, February 20, 2020

Thursday Morning Trek: Quail Hill

Hiking & Fitness

This week in the Irvine Open Space, we’ll be in Quail Hill, once part of the historic Irvine cattle ranch. The hike is seven and a half miles with some climbing, but rewards you with fantastic views overlooking Laguna Canyon and many Irvine locales. Please bring water, a trail snack, sunscreen, hat and any other necessary equipment to […]

Thursday Morning Trek: Quail Hill
Date:
Thu, 02/20/2020
Time:
8:00 AM - 11:30 AM
Where:
Quail Hill
Difficulty Rating:
4
Distance:
7.5 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, February 27, 2020

Thursday Morning Trek: Limestone Canyon and Dripping Springs

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in Limestone Canyon to Dripping Springs. The hike is 7-mile loop hike which includes some hills and descents. In addition to the springs, we will enjoy panoramic views of the wildlands from East Loma. Please bring water, a trail snack, sun screen, hat, and any […]

Thursday Morning Trek: Limestone Canyon and Dripping Springs
Date:
Thu, 02/27/2020
Time:
8:00 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, March 5, 2020

Thursday Morning Trek: Orchard Hills

Hiking & Fitness

Join us for a challenging and beautiful adventure as we hike to the Hangman’s Tree Monument on Loma Ridge. Hike distance is 6 miles and affords fantastic views along the way, spanning the Pacific coastline, San Gabriel peaks and the Santa Ana Mountains. Several very steep climbs and descents are part of this route. We’ll […]

Thursday Morning Trek: Orchard Hills
Date:
Thu, 03/05/2020
Time:
8:00 AM - 11:00 AM
Where:
Orchard Hills
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, March 12, 2020

Thursday Morning Trek: Fremont Canyon

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in the remote Fremont Canyon. The hike is just under 6 miles and includes a steep hill. We will hike from the mouth of Fremont Canyon, past a historic coal mine, to the Fremont Weather Station. After enjoying a spectacular view, we will hike back […]

Thursday Morning Trek: Fremont Canyon
Date:
Thu, 03/12/2020
Time:
8:00 AM - 11:00 AM
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, March 19, 2020

Thursday Morning Trek: Agua Chinon and The Sinks

Hiking & Fitness

Come out and join us on a breathtaking hike from the Irvine Open Space Preserve into OC Parks’ Limestone Canyon. This week’s docent-led hike begins in the Agua Chinon wash, continues to The Sinks, and may include a side trip to Box Springs, a natural year-round source of fresh water. Maximum distance is just short […]

Thursday Morning Trek: Agua Chinon and The Sinks
Date:
Thu, 03/19/2020
Time:
8:00 AM - 11:30 AM
Where:
Irvine Open Space Preserve
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Spaces Left:
Full
More Information  

Thursday, March 26, 2020

Thursday Morning Trek: Baker Canyon

Hiking & Fitness

This week in the Irvine Ranch Open Space, we’ll hike in Baker Canyon. This scenic hike includes steep climbs and descents on both single and double-track trails with about 1100 feet of accumulated climbing. We will enjoy sweeping views of the Irvine Ranch Natural Landmarks and the Santa Ana Mountains. On clear days, we can […]

Thursday Morning Trek: Baker Canyon
Date:
Thu, 03/26/2020
Time:
8:00 AM - 11:00 AM
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
12
Spaces Left:
Full
More Information