Outdoor Activities and Programs - Irvine Ranch Natural Landmarks

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.

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.

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Friday, May 9, 2025

Crystal Cove State Park Full Moon Hike

Explore the Park After Dark, on a guided interpretive 2-hour, 4-mile Full Moon Hike at Crystal Cove State Park. A park naturalist will lead hikers on this moderate to difficult loop trail with uneven terrain and a steep uphill climb, elevation gain of 600 ft. This hike is suitable for ages 10 and up. Hikers must wear sturdy shoes, bring water, and insect repellent. Please bring a red flashlight, if you don’t have one, we will have some to share. Meet at the Ranger Station (PCH inland at stoplight School-State Park, follow the signs to the Ranger Station). $15 day use fee.

Date:: Fri, 05/09/2025
Time:: 7:30 pm - 9:30 pm
Where:: Crystal Cove State Park
Difficulty Rating:: 3
Minimum Age:: 10
Spaces Left:: Full

More Information

Sunday, May 11, 2025

Bommer Canyon Preserve Full Moon Hike

Experience the serenity of Bommer Canyon Preserve under a full moon during this moderate-paced hike in the Irvine Open Space Preserve. We’ll experience mature coastal sage scrub and fantastic sunset views overlooking the city of Irvine and the hillsides to the north. This hike is just over 3 miles and includes 700 feet of total climbing elevation with several very steep inclines. The steepest section ascends 300 feet in a quarter-mile. Participants must be in good physical condition.

Date:: Sun, 05/11/2025
Time:: 7:30 pm - 10:00 pm
Where:: Bommer Canyon Preserve
Difficulty Rating:: 3
Distance:: 3 miles
Minimum Age:: 12
Spaces Left:: Full

More Information

Full Moon Hike on Hicks Haul Road

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. This hike is done at an easy walking pace. This out-and-back program travels 3 – 3.5 miles round trip to scenic Loma Ridge and back down.