Iwashita hot springs, or Iwashita Onsen, have been flowing for 1300 years in a location in Kamiiwashita called the “Ancient Battlefield of Yukarisawa.” It was popular among local people since the Edo Period (1603-1868) as a public bath that heals skin cuts and skin diseases.
In 1875, the predecessor of Iwashita Onsen Inn received the rights to the wellspring, from which cold, clear water continues to bubble forth at a temperature of 28.2°C in the semibasement of the inn’s old building. There are two bathtubs at the inn: one filled with heated spring water, and the other filled with cold spring water as it is. They both flow directly from the wellspring without adding tap water. Visitors can enjoy the onsen on a stopover.
The wooden old building is designated a national Intangible Cultural Property.
In 1875, the predecessor of Iwashita Onsen Inn received the rights to the wellspring, from which cold, clear water continues to bubble forth at a temperature of 28.2°C in the semibasement of the inn’s old building. There are two bathtubs at the inn: one filled with heated spring water, and the other filled with cold spring water as it is. They both flow directly from the wellspring without adding tap water. Visitors can enjoy the onsen on a stopover.
The wooden old building is designated a national Intangible Cultural Property.