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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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16 Events Found • Filtered by: Category: Mountain Biking

Tuesday, August 12, 2025

Join us for an evening/night mountain bike ride through Limestone Canyon Nature Preserve and Red Rock Wilderness, part of OCParks’ Irvine Ranch Open Space. We will ride approximately 12 miles, with 1500′ of climbing along a variety singletrack trails and...

Date:
Tue, 08/12/2025
Time:
6:00 pm - 8:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
12 miles
Minimum Age:
16
Registration:
0 of 15 Spaces Left

Wednesday, August 13, 2025

Join OC Parks for an interpretive bike ride around Upper Newport Bay! Participants will have the opportunity to get their heart rate up and pedal around the Bay, all while learning about local ecology and history. This moderately-paced ride will...

Date:
Wed, 08/13/2025
Time:
7:30 am - 10:00 am
Where:
Upper Newport Bay
Difficulty Rating:
2
Minimum Age:
14
Registration:
6 of 15 Spaces Left

Saturday, August 16, 2025

If you are new to mountain biking and interested in getting started the right way, or if you are an intermediate rider wanting to broaden your existing bike skills, this is the clinic for you! Class begins with an overview...

Date:
Sat, 08/16/2025
Time:
8:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Distance:
2.5 miles
Minimum Age:
12
Registration:
0 of 18 Spaces Left

Sunday, August 17, 2025

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...

Date:
Sun, 08/17/2025
Time:
4:00 pm - 6:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
8 miles
Minimum Age:
12
Registration:
1 of 15 Space Left

Saturday, August 23, 2025

Experienced mountain bikers can explore one of the most rugged and remote areas of OC Parks’ Irvine Ranch Open Space from the trails of Fremont Canyon Nature Preserve on this moderate-paced ride through Fremont, Blind, and Weir Canyons. Fremont Canyon...

Date:
Sat, 08/23/2025
Time:
8:00 am - 11:30 am
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
5
Distance:
15 miles
Minimum Age:
16
Registration:
7 of 15 Spaces Left

If you’ve got kids showing an interest in mountain biking and want them to learn practical bike handling skills, then join us for the IRC Kid’s Rider Skills Clinic.  The class begins with an overview of bicycle safety and clinic...

Date:
Sat, 08/23/2025
Time:
10:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Minimum Age:
8
Registration:
10 of 16 Spaces Left

Sunday, August 31, 2025

If you are new to mountain biking and interested in getting started the right way, or if you just want to hone your existing skills developing terrain-influenced bike handling over several types of man-made features, this is the clinic for...

Date:
Sun, 08/31/2025
Time:
7:00 am - 11:00 am
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
2.5 miles
Minimum Age:
16
Registration:
Registration Closed

Thursday, September 4, 2025

Think you would enjoy a challenging but relaxing evening biking in the wilderness on empty trails with both a sunset and a nice view of city lights? Then join us on this ride to Mini Moab in Fremont Canyon, a...

Date:
Thu, 09/04/2025
Time:
5:30 pm - 8:30 pm
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
5
Distance:
17 miles
Minimum Age:
18
Registration:
Registration Opens on 08/20/2025 at 8:00am

Sunday, September 7, 2025

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...

Date:
Sun, 09/07/2025
Time:
7:30 am - 11:00 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
16 miles
Minimum Age:
18
Registration:
Registration Opens on 08/23/2025 at 8:00am

Saturday, September 13, 2025

Join us in OC Parks’ Irvine Ranch Open Space for a challenging docent-led mountain bike ride for very experienced off-road riders in excellent cardio shape through Fremont and Weir Canyons to Sierra Peak. We will climb out of Irvine Regional...

Date:
Sat, 09/13/2025
Time:
7:00 am - 12:00 pm
Where:
Fremont Canyon Nature Preserve
Difficulty Rating:
5
Distance:
25 miles
Minimum Age:
18
Registration:
Registration Opens on 08/29/2025 at 8:00am

If you’ve got kids showing an interest in mountain biking and want them to learn practical bike handling skills, then join us for the IRC Kid’s Rider Skills Clinic.  The class begins with an overview of bicycle safety and clinic...

Date:
Sat, 09/13/2025
Time:
10:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Minimum Age:
8
Registration:
12 of 16 Spaces Left

Saturday, September 20, 2025

If you are new to mountain biking and interested in getting started the right way, or if you are an intermediate rider wanting to broaden your existing bike skills, this is the clinic for you! Class begins with an overview...

Date:
Sat, 09/20/2025
Time:
8:00 am - 12:00 pm
Where:
Irvine Open Space Preserve
Difficulty Rating:
2
Distance:
2.5 miles
Minimum Age:
12
Registration:
Registration Opens on 09/05/2025 at 8:00am

Sunday, September 21, 2025

Enjoy riding in the wilderness on empty trails? Then join us on a docent-led mountain bike ride that loops through Baker Canyon. The route features expansive views of Silverado and Santiago Canyons, Irvine Lake and the Santa Ana Mountains, as...

Date:
Sun, 09/21/2025
Time:
8:00 am - 10:30 am
Where:
Black Star Canyon Wilderness Park
Difficulty Rating:
3
Distance:
10 miles
Minimum Age:
16
Registration:
Registration Opens on 09/06/2025 at 8:00am

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...

Date:
Sun, 09/21/2025
Time:
4:00 pm - 6:30 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
Variable
Distance:
8 miles
Minimum Age:
12
Registration:
Registration Opens on 09/06/2025 at 8:00am

Saturday, September 27, 2025

If you enjoy riding in the wilderness on empty trails then join us on this mountain bike through Limestone Canyon and the Red Rock Wilderness Parks. This ride is for experienced off-road riders, in excellent cardio shape and that are...

Date:
Sat, 09/27/2025
Time:
8:00 am - 12:00 pm
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
5
Distance:
19 miles
Minimum Age:
18
Registration:
Registration Opens on 09/12/2025 at 8:00am

Sunday, September 28, 2025

If you are new to mountain biking and interested in getting started the right way, or if you just want to hone your existing skills developing terrain-influenced bike handling over several types of man-made features, this is the clinic for...

Date:
Sun, 09/28/2025
Time:
7:00 am - 11:00 am
Where:
Irvine Open Space Preserve
Difficulty Rating:
3
Distance:
2.5 miles
Minimum Age:
16
Registration:
Registration Closed