Northeast of Laguna Beach and Rancho Santa Margarita, the O'Neill Regional Park has 18 miles of forested horseback riding trails in Trabuco Canyon and Live Oak Canyon. These wooded trails pass through sycamore and coast live oak forests, along with cactus, sagebrush and wild buckwheat grasses.
Recently, there has been an addition to the park known as the Arroyo Trabuco Wilderness Preserve. The Arroyo Trabuco Wilderness Preserve has 935 acres of pristine land that has a large trail network.
To reach O'Neill Regional Park from US5, use Exit #91. Head northeast on El Toro Road passing SR241. Veer right on Live Oak Canyon Road. Continue as name changes to Trabuco Canyon Road. The corral arena and campground are on the right hand side of the road.
Overall, O'Neill Regional Park is the 78th most popular horse trail of all 81 horseback rides in California.