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.

Monday, January 31, 2022

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. 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, 01/31/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
9 of 20
More Information  

Tuesday, February 1, 2022

Dripping Springs Trail Restoration

Stewardship
Dripping Springs Trail Restoration

Please join IRC staff and volunteers as we work along the Dripping Springs trail.  Spend the morning working through grassland, coastal sage scrub and woodland habitats and then hike to Dripping Springs, a natural water source dripping out of an earthquake fault and down a gorgeous fern-covered rock face. Your work on the trail will benefit the rare plants and animals that this unique feature supports!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

Dripping Springs Trail Restoration
Date:
Tue, 02/01/2022
Time:
8:30 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
14
Spaces Left:
Full
More Information  

Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Hiking & Fitness
Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road. This hike is a 6-mile route as a group – which is conducted at the speed of about 3.0 to 3.5 miles per hour.

The group may spread out for social distance reasons but generally will remain together for the entire hike.

The footing on the asphalt paved road is smoother than dirt roads and single-track trails normally found in Limestone Preserve but is beginning to show its age with cracks, crevices, and an occasional dip. Otherwise, the terrain is smooth, so this is a great hike for anyone who wants a “wilderness experience” without getting dirty! We will have two fairly steep hill ascents and descents. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer, and lizards are also frequently seen in this area.

Early Morning Fitness Hike on Hicks Haul Road: 6-miles
Date:
Tue, 02/01/2022
Time:
8:30 AM - 10:45 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Family Friendly:
Yes
Spaces Left:
11 of 20
More Information  

Wednesday, February 2, 2022

After Work Fitness Hike on Paved Hicks Haul Road

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

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Wed, 02/02/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
6 of 20
More Information  

Saturday, February 5, 2022

Wilderness Access Day: Limestone Canyon

Special Events
Wilderness Access Day: Limestone Canyon

PRE-REGISTRATION is REQUIRED for this event. 

All participants are required to have, a printed copy or on their phone, the confirmation email to show through the window of their vehicle to drive through the entry gate.

You will need the confirmation email for you and your guests to enter the trail system.

Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon. Designated trails will be open for self-guided trail use in OC Parks’ Irvine Ranch Open Space. Trail routes vary in distance and level of difficulty with choices ranging from easy one-hour walks to strenuous 15-mile cardio treks. Whether traveling by feet, hooves, or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers, equestrians, and mountain bikers alike.

Participants will want to plan their day successfully by using Trail Tips to prepare.

Wilderness Access Day: Limestone Canyon
Date:
Sat, 02/05/2022
Time:
8:00 AM - 2:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
12
Family Friendly:
Yes
Spaces Left:
Full
More Information  

Wilderness Access Day: Limestone Canyon, Equestrian

Equestrian
Wilderness Access Day: Limestone Canyon, Equestrian

PRE-REGISTRATION is REQUIRED for this event. 

All participants are required to have, a printed copy or on their phone, the confirmation email to show through the window of their vehicle to drive through the entry gate.

You will need the confirmation email for you and your guests to enter the trail system.

Come experience Limestone Canyon’s beauty from the back of your horse. Designated trails will be open for self-guided access hiking, biking, and equestrian use during Wilderness Access Day in Limestone Canyon. Equestrian riders who have trail riding experience with a fit and able horse will enjoy the historic ranch roads of days gone by. Take in the awe-inspiring vistas from the mighty ridge tops and drink in the cool canyon shade through the oak grove.

There is limited space for equestrian parking. Riders must also have the ability to transport their horse to the staging area.

Wilderness Access Day: Limestone Canyon, Equestrian
Date:
Sat, 02/05/2022
Time:
8:00 AM - 2:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
12
Spaces Left:
Full
More Information  

Sunday, February 6, 2022

Intermediate Mountain Bike Ride from Irvine to Limestone Canyon

Mountain Biking
Intermediate Mountain Bike Ride from Irvine to Limestone Canyon

We start our ride on the paved Hicks Haul Road, the extension of Jeffrey Rd north of Portola Pkwy. As we warm up on the climb to the top of the road, we enjoy increasingly beautiful views over Irvine. We then follow Loma Ridge to the East, with fantastic vistas of Orange County, the surrounding wildlands, and even Catalina Island on clear days. From Loma Ridge, we descend on a single track to the Box Spring which provides year-round water for wildlife like deer.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Motorized recreation vehicles of any class or type are not permitted for recreational use.

Intermediate Mountain Bike Ride from Irvine to Limestone Canyon
Date:
Sun, 02/06/2022
Time:
8:00 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
16 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 01/29/2022
More Information  

Monday, February 7, 2022

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. 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, 02/07/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 01/30/2022
More Information  

Tuesday, February 8, 2022

Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Hiking & Fitness
Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road. This hike is a 6-mile route as a group – which is conducted at the speed of about 3.0 to 3.5 miles per hour.

The group may spread out for social distance reasons but generally will remain together for the entire hike.

The footing on the asphalt paved road is smoother than dirt roads and single-track trails normally found in Limestone Preserve but is beginning to show its age with cracks, crevices, and an occasional dip. Otherwise, the terrain is smooth, so this is a great hike for anyone who wants a “wilderness experience” without getting dirty! We will have two fairly steep hill ascents and descents. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer, and lizards are also frequently seen in this area.

Early Morning Fitness Hike on Hicks Haul Road: 6-miles
Date:
Tue, 02/08/2022
Time:
8:30 AM - 10:45 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 01/31/2022
More Information  

Wednesday, February 9, 2022

After Work Fitness Hike on Paved Hicks Haul Road

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

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Wed, 02/09/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 02/01/2022
More Information  

Monday, February 14, 2022

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. 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, 02/14/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 02/06/2022
More Information  

Tuesday, February 15, 2022

Dripping Springs Trail Restoration

Stewardship
Dripping Springs Trail Restoration

Please join IRC staff and volunteers as we work along the Dripping Springs trail.  Spend the morning working through grassland, coastal sage scrub and woodland habitats and then hike to Dripping Springs, a natural water source dripping out of an earthquake fault and down a gorgeous fern-covered rock face. Your work on the trail will benefit the rare plants and animals that this unique feature supports!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

Dripping Springs Trail Restoration
Date:
Tue, 02/15/2022
Time:
8:30 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
14
Spaces Left:
Registration for this event opens at 8:00am on 02/07/2022
More Information  

Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Hiking & Fitness
Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road. This hike is a 6-mile route as a group – which is conducted at the speed of about 3.0 to 3.5 miles per hour.

The group may spread out for social distance reasons but generally will remain together for the entire hike.

The footing on the asphalt paved road is smoother than dirt roads and single-track trails normally found in Limestone Preserve but is beginning to show its age with cracks, crevices, and an occasional dip. Otherwise, the terrain is smooth, so this is a great hike for anyone who wants a “wilderness experience” without getting dirty! We will have two fairly steep hill ascents and descents. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer, and lizards are also frequently seen in this area.

Early Morning Fitness Hike on Hicks Haul Road: 6-miles
Date:
Tue, 02/15/2022
Time:
8:30 AM - 10:45 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 02/07/2022
More Information  

Wednesday, February 16, 2022

After Work Fitness Hike on Paved Hicks Haul Road

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

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Wed, 02/16/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 02/08/2022
More Information  

Friday, February 18, 2022

Hike to The Sinks: Limestone Canyon

Hiking & Fitness
Hike to The Sinks: Limestone Canyon

Come along with us on this fast-paced morning hike through beautiful Limestone Canyon Nature Preserve to visit The Sinks You’ll be rewarded with a spectacular view of The Sinks as well as sweeping views of Orange County and the Santa Ana Mountains. This hike involves steep climbs and descents on both double and single-track trails.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.

Hike to The Sinks: Limestone Canyon
Date:
Fri, 02/18/2022
Time:
7:30 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
10 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 02/10/2022
More Information  

Monday, February 21, 2022

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. 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, 02/21/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 02/13/2022
More Information  

Tuesday, February 22, 2022

Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Hiking & Fitness
Early Morning Fitness Hike on Hicks Haul Road: 6-miles

Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road. This hike is a 6-mile route as a group – which is conducted at the speed of about 3.0 to 3.5 miles per hour.

The group may spread out for social distance reasons but generally will remain together for the entire hike.

The footing on the asphalt paved road is smoother than dirt roads and single-track trails normally found in Limestone Preserve but is beginning to show its age with cracks, crevices, and an occasional dip. Otherwise, the terrain is smooth, so this is a great hike for anyone who wants a “wilderness experience” without getting dirty! We will have two fairly steep hill ascents and descents. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer, and lizards are also frequently seen in this area.

Early Morning Fitness Hike on Hicks Haul Road: 6-miles
Date:
Tue, 02/22/2022
Time:
8:30 AM - 10:45 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Family Friendly:
Yes
Spaces Left:
Registration for this event opens at 8:00am on 02/14/2022
More Information  

The Lure and Lull of Limestone Canyon and The Sinks: Equestrian Ride

Equestrian
The Lure and Lull of Limestone Canyon and The Sinks: Equestrian Ride
Take a leisurely equestrian ride through beautiful Limestone Canyon, home of oak woodlands, grasslands, and coastal sage scrub.  View evidence of the old ranch days when cattle once roamed the area, and see plants that are native to our area.  You will be touring the beautiful Natural Landmarks.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.
The Lure and Lull of Limestone Canyon and The Sinks: Equestrian Ride
Date:
Tue, 02/22/2022
Time:
10:00 AM - 2:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
8 miles
Minimum Age:
18
Spaces Left:
Registration for this event opens at 8:00am on 02/14/2022
More Information  

Wednesday, February 23, 2022

After Work Fitness Hike on Paved Hicks Haul Road

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

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. 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.

After Work Fitness Hike on Paved Hicks Haul Road
Date:
Wed, 02/23/2022
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 02/15/2022
More Information  
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