Beppu Jigoku Meguri
It is a generic name for the Jigoku around Kannawa, where the source of the spring has been gushing out at about 100 degrees since ancient times. Jigoku Meguri is even mentioned in the "Bungo Fudoki,” a report on topography, culture, and climate prepared during the Nara period (710-794). Of the seven Jigoku with different colors and types of hot water, four, including Umi-Jigoku and Shiraike Jigoku, have been designated as national scenic spots.