Just an FYI for anyone who doesn't follow the Trabuco Ranger District closure page. This road is now limited to residents only due to several severe mud slides yesterday that took the road out and buried several cars. According to the TRS (Trabuco ranger station) this road will be closed until further notice and access to Holy Jim/ Horsethief Canyon will be limited to North Main Divide road (which is also closed for the winter) so as of now, Holy Jim is inaccessible from either direction.
The ACTUAL Trabuco Canyon Trail is gorgeous. The track that is depicted here is for Trabuco Creek Road, the horrible road to the trail head. Literally. The end of this road/track is the trail head. Then take the trail 1.7 miles where it splits. Trabuco Canyon Trail is to the right, Horsethief trail to your left. if doing the loop, go UP Horsetheif and down Trabuco. Horsethief has a lot of sun exposure, no shade, steep and lots of loose rock (sketchy on way down). Trabuco Canyon trail is primarily under the gorgeous trees, although some exposure. Seriously, this track should be removed. it is not helpful to anyone.
I wouldn't consider this a hiking trail by any means. There is nothing natural about this trail. You hike along inaccessible private property, share a dusty road with off road vehicles, not forgetting to mention trash on the side of the road. Pictures are deceptive because they don't represent what the hike actually is. This trail should be closed to hikers because it's somewhat dangerous, off-road vehicles to watch for as well as the sheer amount of dust you will inhale.