Shaveonte, the trail description is not correct. The trailhead is on the corner of Domenigoni and Searle. The trail runs next to Diamond Valley Lake and is flat for two miles until it reaches a water tower and then climbs up a steep hill to a small area with a picnic table overlooking the lake. You can go about one more mile and then the trail ends overlooking some farmhouses.
There is no charge for parking, but there is a $2 charge for walking per person. Good luck.