Upper Waikani Falls also know as "Three Bears Falls" is located just beyond Mile Marker 19 on the Hana Highway,The falls cascade from a height of seventy feet to the Wailua Nui Stream below,  It is one of the most popular waterfalls in the Hawaiian Islands.  It is only a tenth of a mile from the road, but parking is almost non-existent.  If you get lucky with a spot, it is definitely worth the stop.