Wa’ahila Ridge Trail 4 Summary The Wa’ahila Ridge Trail is an up and down hike across one of the many ridge lines along Oahu’s Ko’olau Range.  The trail features some rock scrambling and steep drop offs that make this not a family friendly hike.  For those willing to work up a sweat going up and … Continue reading Best Hikes on Oahu: The Wa’ahila Ridge Trail