The trailhead on the south can be hard to find.
Look for it branching east, near the entrance to the "upper" State Park parking lot. The trail then runs parallel to a different entrance road, the one accessing the "lower" parking lot for RV's, and beach access.
Still near the RV lot, the trail turns left and drops down a rocky, but easy, section, turning right and left a few more times before leveling out and reaching a large wooden bridge. On the other side is El Moro Canyon... the actual canyon, not the trail. Well, it's the trail too, but... anyway.
The lower 2/3rds of this trail are a piece of cake. A wide, dirt road, it slowly weaves up the gut of the canyon, fairly dense ocean/desert vegetation on both sides. About a mile north of the bridge, on the right, is the start of I Think I Can
. A few yards later, on the left, is the entrance to Mach One
(aka: W. Cut Across)
Two miles north of the bridge is the first of two fairly steep slopes that climb over 200 feet in less than a half-mile. After this climb, the trail flattens out and the trees crowd in close for a very beautiful and shaded 0.5 miles until it passes the junction with Slow 'N Easy