One of Japan's top luxury hotel firms will open an "onsen" hot spring resort in upstate New York that it says will be the ...

But not every pool of heated water qualifies as an onsen. Japan has strict laws governing one of the country’s most iconic activities, widely considered a natural treasure. Onsen water is heated ...

But the hot springs – called onsen in Japanese – located all over the country are a major business that is beloved by locals and tourists alike. The industry fears that developing geothermal ...