The Lāʻie Falls Trail Park is a beautiful and moderate trail located in the north of Windward Oahu. The dirt road at the start of the trail leads hikers to Laie Ridge, dotted with Cook Pines and strawberry guava trees. Following the ridge for a short distance, a side trail descends into the valley to the two-tiered Laie Falls. It's not an easy hike but the waterfall is a great refreshing halfway point before the hike out.
Map: https://www.alltrails.com/trail/hawaii/oahu/laie-falls-trail