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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. No walk-up registrations will be permitted. Minors must be accompanied by a parent or guardian for all events. For policies of other organizations, please see the sign-up information provided.
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Our Activities and Programs

The activities listed are offered by a variety of organizations and their dedicated volunteers. All programs are FREE unless noted otherwise. Programs led by IRC-Certified Volunteers require pre-registration. No walk-up registrations will be permitted. Minors must be accompanied by a parent or guardian for all events. For policies of other organizations, please see the sign-up information provided.
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242 Events Found • Filtered by: Category: Hiking & Fitness

Monday, September 22, 2025

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....

Date:
Mon, 09/22/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Registration:
Registration Closed

Tuesday, September 23, 2025

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...

Date:
Tue, 09/23/2025
Time:
7:30 am - 10:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
16
Registration:
16 of 25 Spaces Left

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. During this hike in the Irvine Ranch Open Space, you may travel at various hiking speeds based on your comfort...

Date:
Tue, 09/23/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
12
Registration:
11 of 25 Spaces Left

Wednesday, September 24, 2025

Come along with us on this morning hike through beautiful Limestone Canyon Nature Preserve, part of OC Parks’ Irvine Ranch Open Space. You’ll be rewarded spectacular views of The Sinks as well as panoramic views of Orange County and the...

Date:
Wed, 09/24/2025
Time:
7:00 am - 11:00 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
5
Distance:
10 miles
Minimum Age:
18
Registration:
0 of 15 Spaces Left

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...

Date:
Wed, 09/24/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Registration:
15 of 25 Spaces Left

Thursday, September 25, 2025

This week in OC Parks’ 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...

Date:
Thu, 09/25/2025
Time:
7:00 am - 10:30 am
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
4
Distance:
7 miles
Minimum Age:
16
Registration:
5 of 20 Spaces Left

Have you ever come across a mysterious track on a trail and wondered what animal made it? Was it a mountain lion? A deer? A bobcat, gray fox, or even an opossum? Where was it going—and what was it doing?...

Date:
Thu, 09/25/2025
Time:
3:30 pm - 6:30 pm
Where:
Red Rock Wilderness
Difficulty Rating:
3
Distance:
2 miles
Minimum Age:
16
Registration:
0 of 10 Spaces Left

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. During this hike in the Irvine Open Space Preserve, you may travel at various hiking speeds based on your comfort...

Date:
Thu, 09/25/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
12
Registration:
11 of 25 Spaces Left

Friday, September 26, 2025

Join us at Bommer Canyon for an easy two-mile hike through the nature loop and meadow before practicing yoga at the Cattle Camp. This historic old west setting connects us with the history of The Irvine Ranch and the barn’s...

Date:
Fri, 09/26/2025
Time:
8:00 am - 10:00 am
Where:
Bommer Canyon Preserve
Difficulty Rating:
2
Distance:
2 miles
Minimum Age:
18
Registration:
0 of 20 Spaces Left

Saturday, September 27, 2025

Join us for a strenuous, extremely challenging, fast-paced, early morning cardio hike in Red Rock Wilderness part of OC Parks’ Irvine Ranch Open Space. Along the way we’ll be rewarded with panoramic views and possible wildlife sightings.  This is an...

Date:
Sat, 09/27/2025
Time:
6:30 am - 9:00 am
Where:
Red Rock Wilderness
Difficulty Rating:
5
Distance:
9 miles
Minimum Age:
18
Registration:
2 of 20 Spaces Left

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...

Date:
Sat, 09/27/2025
Time:
6:00 pm - 8:00 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
6 miles
Minimum Age:
16
Registration:
5 of 25 Spaces Left

Sunday, September 28, 2025

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 17 miles and is designed for advanced hikers. Participants...

Date:
Sun, 09/28/2025
Time:
6:30 am - 12:30 pm
Where:
Bommer Canyon Preserve
Difficulty Rating:
5
Distance:
17 miles
Minimum Age:
18
Registration:
12 of 20 Spaces Left

Join us in beautiful Weir Canyon for this moderate paced cardio hike. Along the trail, you’ll pass through coastal sage scrub, grasslands, and oak woodlands where deer and bobcats are frequently observed. Multiple steep climbs and descents, and sweeping views,...

Date:
Sun, 09/28/2025
Time:
7:00 am - 10:00 am
Where:
Weir Canyon Nature Preserve
Difficulty Rating:
4
Distance:
6 miles
Minimum Age:
16
Registration:
24 of 25 Spaces Left

Join us Sunday morning in OC Parks’ 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....

Date:
Sun, 09/28/2025
Time:
7:00 am - 10:00 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
8.5 miles
Minimum Age:
18
Registration:
21 of 25 Spaces Left

Join Laguna Canyon Foundation Volunteer naturalists in partnership with OC Parks to enjoy an easy, 2.5-mile Family Hike over moderate but uneven terrain (45-ft. elevation gain). Starting at the James Dilley Preserve, we will hike one of the most diverse...

Date:
Sun, 09/28/2025
Time:
3:00 pm - 5:00 pm
Where:
Laguna Coast Wilderness Park
Difficulty Rating:
2
Minimum Age:
6

Limestone Canyon is a treasure waiting to be discovered. Join us for an afternoon, fast paced, 5.5-mile fitness hike with 750 ft of elevation. The hike will be a great introduction to fitness, cardio-style hikes as well as OC Parks’...

Date:
Sun, 09/28/2025
Time:
5:00 pm - 7:15 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
5.5 miles
Minimum Age:
18
Registration:
0 of 20 Spaces Left

Monday, September 29, 2025

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....

Date:
Mon, 09/29/2025
Time:
6:00 pm - 7:30 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
16
Registration:
12 of 25 Spaces Left

Tuesday, September 30, 2025

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...

Date:
Tue, 09/30/2025
Time:
7:30 am - 10:30 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
8 miles
Minimum Age:
16
Registration:
21 of 25 Spaces Left

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. During this hike in the Irvine Ranch Open Space, you may travel at various hiking speeds based on your comfort...

Date:
Tue, 09/30/2025
Time:
6:00 pm - 7:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
3
Distance:
3.5 miles
Minimum Age:
12
Registration:
24 of 25 Spaces Left

Wednesday, October 1, 2025

Come along with us on this scenic distance hike through Limestone and Red Rock Wilderness, part of OC Parks’ Irvine Ranch Open Space.  This hike is done at a moderate moving pace of around 3 mph and may involve two...

Date:
Wed, 10/01/2025
Time:
7:00 am - 12:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
5
Distance:
10 miles
Minimum Age:
18
Registration:
13 of 15 Spaces Left
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