The Wiliwilinui Ridge Trail 3 Summary The Wiliwilinui Ridge Trail is 5.2 miles long with nearly 1,200 feet of elevation gain.  It took me just over 2 hours to complete the hike.  The hike largely lived up to my expectations though most of the elevation gain occurs at the end of the hike which provides … Continue reading Best Hikes on Oahu: The Wiliwilinui Ridge Trail