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 52 Events

Saturday, May 18, 2024

Sunset Fitness Hike on Paved Hicks Haul Road: Both Sides of Loma Ridge

Hiking & Fitness
Sunset Fitness Hike on Paved Hicks Haul Road: Both Sides of Loma Ridge

You will enjoy a gorgeous sunset with panoramic views of Orange County while hiking in OC Parks’ Irvine Ranch Open Space on the paved Hicks Haul Road. This hike travels 6 miles, out and back crossing over Loma Ridge. This is the perfect activity for you to get your work-out in and view the sunset. The hike is conducted at an average pace of 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. 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.

Sunset Fitness Hike on Paved Hicks Haul Road: Both Sides of Loma Ridge
Date:
Sat, 05/18/2024
Time:
6:00 PM - 8:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Spaces Left:
5 of 25
More Information  

Bats: Heroes of the Night

Interpretive
Bats: Heroes of the Night

As the day starts to settle into the night in OC Parks’ Irvine Ranch Open Space, bats awaken, stir and streak into the evening sky. Come hear fascinating tales of our flying mammal. We will head out towards a popular roosting location as we watch our nighttime heroes begin their nightly adventures. This program is ideal to visually observe the bats in flight, though bat detectors are available to listen for their high-frequency calls. Be prepared to walk about 1/2 a mile. Dress warmly as it may be a chilly evening. A camping chair is welcome as we will have a short introductory presentation in the staging area before the walk.

Bats: Heroes of the Night
Date:
Sat, 05/18/2024
Time:
7:00 PM - 9:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
1
Distance:
2 miles
Minimum Age:
6
Spaces Left:
Full
More Information  

Sunday, May 19, 2024

CANCELLED: Sunday Fitness Hike at Hicks Haul

Hiking & Fitness
CANCELLED: Sunday Fitness Hike at Hicks Haul

Join us Sunday morning in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the Hicks Haul Road, West Loma and Shoestring trails in Limestone Canyon. Hikers will enjoy wonderful views and a panoramic overview of Orange County. The hike starts at Hicks Haul Road staging area and will cover a distance of 8.5 miles, about 5 miles of the hike is on paved surface and rest on trails. Participants are expected to hike close to 3 miles per hour and come prepared with closed toe hiking boots or shoes, water, trail snacks, sunscreen, hat, day pack or fanny pack, and any other necessary equipment or supplies you might need to keep you safe on this hike.

CANCELLED: Sunday Fitness Hike at Hicks Haul
Date:
Sun, 05/19/2024
Time:
6:30 AM - 9:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
8.5 miles
Minimum Age:
18
Spaces Left:
21 of 25
More Information  

Limestone Canyon – Weekend Hike to both Sinks

Hiking & Fitness
Limestone Canyon - Weekend Hike to both Sinks

Join us on this fast-paced hike over the ridge and the through beautiful Limestone Canyon Nature Preserve, part of OC Parks’ Irvine Ranch Open Space. While this will not be a cardio hike, it will be a steady pace of 3 mph with short breaks at the East and West Sinks viewing platforms. We will enjoy a view of wonderful vista’s in addition to spectacular view of The Sinks. This hike involves hiking on both double and single-track trails with an elevation gain of 1000.

Limestone Canyon - Weekend Hike to both Sinks
Date:
Sun, 05/19/2024
Time:
7:00 AM - 11:00 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
10 miles
Minimum Age:
18
Spaces Left:
2 of 25
More Information  

CANCELLED due to Trail Conditions: Looking for Native Animals in Your Backyard: Round Canyon

Interpretive
CANCELLED due to Trail Conditions: Looking for Native Animals in Your Backyard: Round Canyon

There are critters in your backyard: big ones, little ones, furry ones, ones with feathers, and ones with scales. They go about their business and pay little attention to you. In fact, they would rather not be bothered unless you were a tempting morsel of food. Round Canyon is teeming with wildlife, and waiting for you to experience the solitary bobcat, the elusive ring-tailed cat, the mighty great horned owl, and playful ground squirrels, among many others.

CANCELLED due to Trail Conditions: Looking for Native Animals in Your Backyard: Round Canyon
Date:
Sun, 05/19/2024
Time:
9:00 AM - 11:00 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
2
Distance:
2.5 miles
Minimum Age:
8
Family Friendly:
Yes
Spaces Left:
5 of 20
More Information  

Evening Family Beginner Mountain Bike Ride: Limestone Canyon to The Sinks

Mountain Biking
Evening Family Beginner Mountain Bike Ride: Limestone Canyon to The Sinks

For families and children ages 12 and up who would like to join IRC-certified volunteers in OC Parks’ Irvine Ranch Open Space on a longer, slow-paced, family-oriented ride through sycamores, oaks, and habitat native to California. The route takes us to The Sinks, Orange County’s own “Grand Canyon.” Along the way, we will stop and talk about the local habitat, and hope to see some of our local native animals and raptors. The ride is an 8-9 miles with 400-800 feet of elevation gain that may require hike-a‐bike for some riders. Motorized recreation vehicles of any class or type are not permitted for recreational use.

Evening Family Beginner Mountain Bike Ride: Limestone Canyon to The Sinks
Date:
Sun, 05/19/2024
Time:
5:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
12
Spaces Left:
Full
More Information  

Tuesday, May 21, 2024

Enjoy Nature’s Story, Vistas, and Special Places – Intro Hike in Agua Chinon to The Sinks

Hiking & Fitness
Enjoy Nature's Story, Vistas, and Special Places - Intro Hike in Agua Chinon to The Sinks

Join us on a slow-paced hike along the back-country ridges and valleys of Agua Chinon Canyon, part of OC Parks’ Irvine Ranch Open Space. We’ll travel on rough old ranch roads passing by woodlands of majestic oak trees and expanses of Coastal Sage Scrub and enjoy wonderful vistas. Total round-trip distance is 6 miles with an elevation gain of 1000 feet at an average moving rate of 2.0-2.5 miles per hour. Some of the hills are strenuous and we will take breaks as needed. Participants should be in good hiking condition and have previously completed a similar distance hike.

Enjoy Nature's Story, Vistas, and Special Places - Intro Hike in Agua Chinon to The Sinks
Date:
Tue, 05/21/2024
Time:
7:30 AM - 11:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
6 miles
Minimum Age:
16
Spaces Left:
15 of 20
More Information  

Tuesday Morning Fitness Hike on Paved Hicks Haul Road

Hiking & Fitness
Tuesday Morning Fitness Hike on Paved Hicks Haul Road

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road in OC Parks’ Irvine Ranch Open Space. This hike allows you to choose between a 3, 6, or 8 mile route, all of which are conducted at the speed of about 3.0 to 3.5 miles per hour. The footing on the asphalt paved road is smoother than dirt roads and single track trails normally found in Limestone Canyon Nature 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 walk for anyone who wants a “wilderness experience” without getting dirty! The 6 and 8 mile routes experience two fairly steep ascents and descents. The 3 mile route takes you to the top of Loma Ridge and back down. 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.

Tuesday Morning Fitness Hike on Paved Hicks Haul Road
Date:
Tue, 05/21/2024
Time:
7:30 AM - 10:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
16
Spaces Left:
21 of 25
More Information  

Wednesday, May 22, 2024

After Work Cardio Hike in Limestone Canyon – East Loma

Hiking & Fitness
After Work Cardio Hike in Limestone Canyon - East Loma

Leave the weekday chaos behind and dive into the peaceful beauty of OC Parks’ Limestone Canyon with our energizing after-work cardio hike. Forget about the day’s worries as we trek through stunning landscapes, breathing in the fresh air and taking in the scenic views. Come along for a journey through winding paths and picturesque vistas, where we can recharge and refresh ourselves in the tranquility of nature.

After Work Cardio Hike in Limestone Canyon - East Loma
Date:
Wed, 05/22/2024
Time:
5:30 PM - 8:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
9.5 miles
Minimum Age:
18
Spaces Left:
6 of 25
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 Wednesday night in OC Parks’ Irvine Ranch Open Space 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 an average of 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:
Wed, 05/22/2024
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
14 of 25
More Information  

Friday, May 24, 2024

Twilight Fitness Hike in Limestone Canyon

Hiking & Fitness
Twilight Fitness Hike in Limestone Canyon

Limestone Canyon is a treasure waiting to be discovered. Join us for an afternoon, moderately paced, 5.5-mile fitness hike. The hike may include a few short rest stops along the way and will be a great introduction to fitness, cardio-style hikes as well as OC Parks’ magnificent Irvine Ranch Open Space.  Views of Limestone Canyon, and the surrounding wilderness, from Limestone Ridge will be the highlight of our tour.

Twilight Fitness Hike in Limestone Canyon
Date:
Fri, 05/24/2024
Time:
5:30 PM - 7:45 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
5.5 miles
Minimum Age:
18
Spaces Left:
7 of 20
More Information  

Saturday, May 25, 2024

Animal Signs and Tracks in Agua Chinon

Interpretive
Animal Signs and Tracks in Agua Chinon

Come search for evidence that animals leave behind in OC Parks’ Irvine Ranch Open Space. Mule deer, bobcats, coyotes and even mountain lions call this hidden canyon home. Gain the basic tracking techniques as we search for evidence such as tracks, fur, bones, homes, and even scat. You never know what you may find! Please wear comfortable clothes and shoes that you do not mind getting a little dusty. This program is focused on older children and adults.

Animal Signs and Tracks in Agua Chinon
Date:
Sat, 05/25/2024
Time:
8:00 AM - 11:00 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3 miles
Minimum Age:
12
Spaces Left:
18 of 20
More Information  

Sunday, May 26, 2024

Agua Chinon Equestrian Ride

Equestrian
Agua Chinon Equestrian Ride

Join us on an equestrian ride up Agua Chinon Canyon in OC Parks’ Irvine Ranch Open Space. We will make our way to see the wonders of the Sinks, Orange County’s mini Grand Canyon and take in the beauty around us at the Sinks Viewing Deck. Then we will finish our ride back to the staging area.

Agua Chinon Equestrian Ride
Date:
Sun, 05/26/2024
Time:
1:00 PM - 3:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
6 miles
Minimum Age:
18
Spaces Left:
5 of 8
More Information  

Tuesday, May 28, 2024

Tuesday Morning Fitness Hike on Paved Hicks Haul Road

Hiking & Fitness
Tuesday Morning Fitness Hike on Paved Hicks Haul Road

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road in OC Parks’ Irvine Ranch Open Space. This hike allows you to choose between a 3, 6, or 8 mile route, all of which are conducted at the speed of about 3.0 to 3.5 miles per hour. The footing on the asphalt paved road is smoother than dirt roads and single track trails normally found in Limestone Canyon Nature 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 walk for anyone who wants a “wilderness experience” without getting dirty! The 6 and 8 mile routes experience two fairly steep ascents and descents. The 3 mile route takes you to the top of Loma Ridge and back down. 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.

Tuesday Morning Fitness Hike on Paved Hicks Haul Road
Date:
Tue, 05/28/2024
Time:
7:30 AM - 10:30 AM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
16
Spaces Left:
20 of 25
More Information  

Wednesday, May 29, 2024

Dripping Springs Trail Restoration

Stewardship
Dripping Springs Trail Restoration

Spend the morning watering and mulching Coast Live Oak seedlings within a beautiful oak woodland 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!

Dripping Springs Trail Restoration
Date:
Wed, 05/29/2024
Time:
9:30 AM - 1:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
18
Spaces Left:
6 of 8
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 Wednesday night in OC Parks’ Irvine Ranch Open Space 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 an average of 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:
Wed, 05/29/2024
Time:
6:00 PM - 7:30 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Spaces Left:
15 of 25
More Information  

Saturday, June 1, 2024

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 or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers 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, 06/01/2024
Time:
8:00 AM - 2:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes
Spaces Left:
274 of 400
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, 06/01/2024
Time:
8:00 AM - 2:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
Variable
Minimum Age:
All Ages
Spaces Left:
3 of 3
More Information  

Sunday, June 2, 2024

Intermediate Mountain Bike Ride from Irvine to Limestone Canyon

Mountain Biking
Intermediate Mountain Bike Ride from Irvine to Limestone Canyon

We start our ride through OC Parks’ Irvine Ranch Open Space 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 Box Springs which provides year-round water for wildlife like deer.

After the springs, we continue to the Sinks, Orange County’s own “Grand Canyon,” where we enjoy our snacks during a short break. On our way back, we ride along Limestone Ridge, a fun singletrack that leads us towards the Augustine Staging area, enjoying views of Saddleback and Santiago Canyon. From there we will climb back up to Loma Ridge, and then coast back down on the paved Hicks Haul Road to our starting point. Motorized recreation vehicles of any class or type are not permitted for use in the Nature Preserve.

Intermediate Mountain Bike Ride from Irvine to Limestone Canyon
Date:
Sun, 06/02/2024
Time:
7:00 AM - 10:30 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 05/18/2024
More Information  

Photo Journey Limestone Canyon: The Sinks, Loma Ridge Backcountry and Sunset

Interpretive
Photo Journey Limestone Canyon: The Sinks, Loma Ridge Backcountry and Sunset

Join us in the back-country wilderness for a journey filled with beautiful sights that are photographic and artistic sketching opportunities. Our journey begins in the afternoon. We will be deep in a secluded canyon, where time is measured in centuries, even millennia, in the sandstone cliffs of this ancient place called Limestone Canyon. You will board a 4-wheel drive vehicle for a 13-mile tour of the canyon and hills surrounding it. We will stop frequently for 15-30 minutes to admire the views, take photos, sketch landscapes, and answer questions.

Photo Journey Limestone Canyon: The Sinks, Loma Ridge Backcountry and Sunset
Date:
Sun, 06/02/2024
Time:
4:00 PM - 8:00 PM
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
2
Distance:
16 miles
Minimum Age:
16
Spaces Left:
Registration for this event opens at 8:00am on 05/18/2024
More Information  
1 2 3