Hilo Is the orchid capital of the world, and a showcase of this is located on the road between Hilo and Volcano: The Akatsuka Orchid Gardens. This is a good place to pull over on a rainy day for a little stop and to admire the many beautiful tropical orchids. Do not forget to take your camera because if one flower is photogenic, it is the orchid.
The orchid gardens are located on Highway 11 between mile markers 22 and 23 on the mauka (ocean-side) of the road. You can visit the website of the Akatsuka Orchid Garden here.