This onsen hotel has been established more than 100 years ago. It has four different onsen sources and a huge indoor onsen akin to a swimming pool, which dwarfs its rotenburo. This is the largest onsen that we have visited (except for the wild onsen in Kusatsu). In its gallery, Sakamoto Ryoma and his wife Ryo stayed there for honeymoon, which was a pretty new concept in Japan in that era.
On the hillside there is a huge forest planted with Sugi (Japanese pine) more than 100 years ago.