I recall Hilo from about twenty years ago or so.
The volcano was not active when we were there either, but I recall enjoying walking through a lava tube from one end to the other.
One of my great desires is to explore the lava tubes on the Moon and on Mars. :D
Thanks for the story and the great photos, and of course for continuing to be a "BEOS Bearer." ;)
Now there's another great idea you have with the moon and Mars!!