Why do you think hot springs are hot?
If they are in volcanic areas, you may imagine that the magma body heats underground water.
However, it cannot explain scalding hot water gushing in the area where there are no active volcanos nearby.
In fact, movements of plates of the earth create some hot springs.
Do you know the relationship between hot springs and industry?
Iwaki-shi in Fukushima prefecture has been at the mercy of the energy industry.
In ancient times, the city experienced ebb and flow of a coal mine, and today suffers from the reputational damage of the serious accident of Fukushima Daiichi Nuclear Power Plant.
It is no coincidence that there are great hot springs in such city.
Does a better-known hot spring provide better water?
Dogo Onsen is famous for being counted as Three Ancient Springs.
However, the amount of water is not so sufficient that you can hardly find free-flowing water.
Let us think about today’s Three Ancient Springs at the almost only one exception, Hotel Kowakuen.
Do you know real Arima Onsen?
Arima is counted among Thee Ancient Springs and is near big cities like Osaka and Kobe, and some of you may have been there.
However, this historical spa city is facing depletion of the water; therefore, there are few inns providing real hot springs in terms of water not artificially processed.