Amazing views of the surrounding valleys, Honopu Beach, and the Na Pali Coast. Park service stopped maintaining the trail after it was destroyed by a hurricane in 19825 miles roundtrip.
Drive Waimea Canyon Drive until you reach mile marker 17. Continue about half a mile further, park at the turnout on a corner near a telephone pole. The trailhead is directly back from the turnout.
You'll first encounter a maze of criss-crossing hunter trails. Stay mostly to the left, following ribbon markers left by volunteers. The trail continues for about 2 miles until you reach a dirt outcrop overlooking the valley. It continues about 0.5 mile further but the trail becomes very narrow as you continue down the ridge. The trail becomes rough at a few points but views throughout are well worth the effort. It feels like you're stepping back in time when you hike Honopu Ridge.