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.
Updated Difficulty Ratings: The Hiking and Fitness Difficulty Ratings have been updated to reflect our current activities. Please click below to read the ratings.
Click here to learn more about IRC-Certified Volunteers. • Click here to learn more about the Difficulty Ratings.
Search & Filter Activities
Monday, May 26, 2025
Early Morning Hike: Gypsum Canyon Wilderness
Come explore beautiful Gypsum Canyon Wilderness, the northernmost portion of OC Parks’ Irvine Ranch Open Space. This scenic hike involves steep climbs and descents on several single-track trails and is done at an average moving pace of 3 miles per hour. The rewards are many: panoramic views of Fremont and Weir Canyon Nature Preserves and beyond, possible wildlife sightings, interesting rock formations, and beautiful wildflowers in season.
- Date:
- Mon, 05/26/2025
- Time:
- 6:30 am - 9:30 am
- Where:
- Gypsum Canyon Wilderness
- Difficulty Rating:
- 4
- Distance:
- 6.5 miles
- Minimum Age:
- 18
- Spaces Left:
- 17 of 20
Friday, June 6, 2025
Plants Among Us: Learning About Plants at Gypsum Canyon Wilderness
Curious to learn about the plants among us? Join us for a hike at Gypsum Canyon Wilderness where we’ll look at local flora, talk about native and non-native species, and learn how different plants impact our ecosystems. Learning to identify plants, both native and non-native, is a great way to cultivate a relationship to our local wildlands.
This hike will take us up a portion of Gypsum Canyon Road or Oven Canyon Road. This activity is geared toward participants curious about our local plants and ecosystem. Please bring water, closed-toe shoes and all items needed to keep you safe during our walk. Hats and sunscreen are highly recommended.
- Date:
- Fri, 06/06/2025
- Time:
- 8:30 am - 11:00 am
- Where:
- Gypsum Canyon Wilderness
- Difficulty Rating:
- 2
- Distance:
- 3 miles
- Minimum Age:
- 5
- Family Friendly:
- Yes
- Spaces Left:
- Registration for this event opens at 8:00am on 05/22/2025
Saturday, June 14, 2025
Wilderness Access Day: Gypsum Canyon Wilderness
Access is first come first served until parking capacity is reached. No registration required.
Equestrians, while space is not guaranteed we encourage you to please email irvineranchopenspace@ocparks.com to coordinate parking.
Come explore 6 miles of new trails at Gypsum Canyon Wilderness through this self-guided opportunity.
Located within OC Parks’ Irvine Ranch Open Space, Gypsum Canyon Wilderness features seven new trails for hiking, mountain biking and horseback riding. Two lookout points offer sweeping views of the surrounding canyons and unique prehistoric rock formations. Multiple loop options that vary in distance and range from easy to moderate in difficulty are available for self-guided exploration.
Gypsum Canyon Wilderness is comprised of protected and preserved native habitats that a variety of wildlife, including mule deer, red-tailed hawks, California gnatcatchers and bobcats, call home.
Rain or inclement weather will cancel the program.
Gypsum Canyon Wilderness is located at 390 South Gypsum Canyon Road, Anaheim, CA 92887.
Please review our Trail Tips page and FAQ page to prepare for your experience in the wilderness area.
- Date:
- Sat, 06/14/2025
- Time:
- 8:00 am - 2:00 pm
- Where:
- Gypsum Canyon Wilderness
- Difficulty Rating:
- Variable
- Minimum Age:
- All Ages
- Family Friendly:
- Yes
Friday, June 27, 2025
Early Morning Hike: Gypsum Canyon Wilderness
Come explore beautiful Gypsum Canyon Wilderness, the northernmost portion of OC Parks’ Irvine Ranch Open Space. This scenic hike involves steep climbs and descents on several single-track trails and is done at an average moving pace of 3 miles per hour. The rewards are many: panoramic views of Fremont and Weir Canyon Nature Preserves and beyond, possible wildlife sightings, interesting rock formations, and beautiful wildflowers in season.
- Date:
- Fri, 06/27/2025
- Time:
- 6:30 am - 9:30 am
- Where:
- Gypsum Canyon Wilderness
- Difficulty Rating:
- 4
- Distance:
- 6.5 miles
- Minimum Age:
- 18
- Spaces Left:
- Registration for this event opens at 8:00am on 06/12/2025
