Holy Jim Trail is a 4 mile hiking trail in Trabuco Hills/rancho Santa Margarita, California.
From Orange take Chapman east. It becomes Santiago when you pass Jamboree. Continue east until you reach Cooks Corner and turn left. Continue past O'neill Park until you reach Rose Canyon. You will cross over Trabuco Creek Bed and there will be a dirt parking area on the left. There is a dirt road there that leads into the canyon called Trabuco Creek Road. You can park there or drive up the dirt road and park closer to the trail if you have an Adventure Pass. When you get to the Trabuco Canyon Fire Station there will be a bridge and a Y. The right leads to West Horsethief Trail, the left will take you through a residential type area and Holy Jim. The trailhead is at the end of the road and is clearly marked.
http://www.tripleblaze.com/trail.php?c=3&i=7810