OC Trail Runners Group Run

Challenge yourself at the Billy Goat Mountain Climb near Silverado with steep climbs and sweeping views through Cleveland National Forest. Choose a 17 mile loop, half marathon or 10K and finish with a medal, race shirt and post race snacks.

Hit the trails at Crystal Cove for Rock It in El Moro Canyon on April 4, 2026, choose a scenic 6K or challenging 10 Miler with climbs, descents and Pacific Ocean views. Run or hike, and enjoy a shirt, race photos and a finisher medal.

Run the O'Neill Park Trail Races on Saturday May 16 2026 in Trabuco Canyon with distances from 10k to 50k through oak and sycamore canyons. Scenic singletrack, rolling climbs and coastal scrub create a memorable trail race experience.

Run Fullerton's inaugural 5K on dirt trails through Brea Dam and along the tennis center and golf course. Afterward enjoy a Health and Wellness Fair with local vendors, fitness demos and food trucks.