Unzen's volcanic landscape inspires rich folklore:
A fearsome demon resides in the crater, controlling eruptions. Depicted as a giant with red skin and horns; its anger causes explosions.
A beautiful fox spirit seduced local men, causing neglect of duties. Hunted down to protect the community.
Hunters found a wounded deer healing in a steaming pool; the water cured them too, revealing the area's therapeutic springs.
Founded ~1,500 years ago by Buddhist monk Gyōki on Mount Unzen to worship mountain gods and pray for locals. Now a major pilgrimage site.