Nestled in the pristine valley of the Joshin'etsukogen National Park, this traditional Ryokan is one of the oldest inns in the world. 

Hotel Hoshi Onsen is a family run hotel. It is famous for its historical baths, sourced from the natural hot springs of the Hoshi River and built around an old wooden structure that transport its visitors to another century. The incredible serenity attracts writers and painters. All the staff at Hotel Hoshi Onsen are local to the Gunma region, and live with the family at the Inn. Their focus is on preserving the traditional hospitality of the region. 

From the series, The World's Most Remote Hotels.