Oniishi Bozu-Jigoku exploring, in Beppu, Oita-prefecture

 

Oniishi Bozu-Jigoku is one of the excitng Hell tour, located next to Umi-jigoku.

This jigoku is first mentioned in bungo fudoki historical document from the year 733.

The name “Oniishi” is taken from the name of the location, and “bozu jigoku” after

the grey-colored bubbles which emerge from boiling mud pools and resemble

the shaven heads of monks.