This trail branches off from the old golf cart paths to the left, toward the river. It is maintained and mowed, so easy to find. If you begin to climb a concrete trail, you went too far.
Be aware that this crosses a small ravine on a log bridge about 18" wide, which can be a bit twitchy there. Then you cross the creek on a steep drop, so be ready.
Stop and take in the beautiful waterfalls when the water is up, which makes for a very nice diversion! Follow the road and it will begin a rather steep climb, which then connects to the Perimeter Trail.