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, December 11, 2023
Monday Morning Super Trek: Quail Hill

Come start your week with us on our Super Treks in the Landmarks. Join us as we explore the City of Irvine’s Open Space Preserve, hiking Quail Hill and Shady Canyon trails. Our hike will climb through rocky terrain and reward us with spectacular views of the surrounding hills and nearby Irvine. There will be several steep ascents and descents. Participants must be able to hike 9 miles with an elevation gain of 2000 feet at an average moving rate of 3 miles per hour. All participants must carry their own water! Please come prepared with a pack, plenty of water, snacks, sturdy closed-toe hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail. Under-prepared participants may be denied access to the event!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Thursday, December 14, 2023
Thursday Morning Trek: Quail Hill

This week in the Irvine Open Space Preserve, we’ll be in Quail Hill, once part of the historic Irvine cattle ranch. The hike is seven and a half miles with some climbing, but rewards you with fantastic views overlooking Laguna Canyon and many Irvine locales. Please bring water, a trail snack, sunscreen, hat and any other necessary equipment to keep you safe on the trail. Get your boots out and register to hike the Quail Trail and Shady Canyon singletrack trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
Pulling Together at Quail Hill

North African Knapweed, Centaurea diluta, is a recently introduced invasive plant and we need your help to get rid of it! Invading weeds degrade habitat for wildlife, exacerbate wildfire risks, and reduce overall biodiversity. Help us keep wildlife healthy by weeding North African Knapweed from Quail Hill in Irvine.
This activity takes place on some uneven terrain, and sturdy hiking boots are highly recommended. Training and tools will be provided to ensure your safety and comfort. Rattlesnakes are occasionally seen here and generally avoid people, but protective gear will be provided.
We will meet at the Quail Hill Trailhead parking lot, then be driven by the IRC staff lead on a bikeway adjacent to the 405 Freeway to the work site.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land.