We were lucky to catch a rainbow at rainbow falls the day we went to hilo. In fact it was one of many we saw throughout the day. I even saw my first sighting of a double rainbow near a lava flow
Akaka Falls State Park
Located in a tropical rain forest, this park is known for 2 waterfalls, Akaka Falls (shown) which drops 420 feet, and Kahuna Falls.
Directions: Follow the signs on highway 19. Five miles west of the highway on Akaka Falls road.