First you have to shed your inhibitions. A regular patron of the spa says at first she was ashamed to be in the water with her parents, but now she finds it a wonderful experience.
There is also an indoor spa fed by the same natural hot spring. It's a much steamier experience. To cool off, you simply slide open one of the windows and let nature blow inside. It's something many consider very personal and very satisfying.
"I feel close to nature," says one spa-goer. "And if I have a beer here, it's very nice."
Most days, there are more men than women. Legend has it that a man, a samurai who first witnessed the warm water's healing powers. The samurai watched a wounded animal repeatedly bathe in the spring water and slowly heal. A samurai wounded in battle did the same. His gash and stab wounds healed. People now come from all over Japan for healing and relaxation.
This is something most people in Japan do. Some come to bathe every day in the natural spring water, clean and pure enough to drink. It's a natural experience in a totally natural way.
"You should try it," explains a spa worker. "At first, it's embarrassing, but then it is wonderful."