Kapena Falls has carved a swimming hole for youngsters willing to go to some trouble to get there. Park on the Pali Highway at the scenic point overlooking the Japanese pagoda, then follow the steep trail to the falls. You may also come across some petroglyphs; drawings made in stone by prehistoric Hawaiians who presumably also enjoyed swimming and picnicking in the same area.
This most unusual waterfall is often visible near the crest of the Pali Highway. The water tumbles over a nearby cliff, but the strong prevailing trade winds generally prevent it from falling more than a few feet before it is blown upwards and dissipated.