Netsunoyu in Kusatsu Area

Netsunoyu Guide - Kusatsu, Gunma, Japan

Netsunoyu is a popular hot spring located in the Kusatsu area of Gunma, Gunma, Japan. It is known for its high quality water and unique sulfuric smell. The hot spring is surrounded by beautiful mountains and forests, making it a great destination for nature lovers.


The approximate latitude and longitude of Netsunoyu is 36.5647° N, 138.5949° E.


Netsunoyu has a large indoor bath and an outdoor bath, both filled with natural hot spring water. The indoor bath is made of Japanese cypress wood and has a relaxing atmosphere. The outdoor bath offers a stunning view of the surrounding mountains and forests. There are also private baths available for reservation.


Netsunoyu has a long history dating back to the Edo period (1603-1868). It was discovered by a local farmer who noticed that his injured leg was healed after soaking in the hot spring. Since then, Netsunoyu has been a popular destination for people seeking the healing powers of the hot spring water.

Things to Do

  • Relax in the indoor and outdoor hot spring baths
  • Reserve a private bath for a more intimate experience
  • Hike in the surrounding mountains and forests
  • Visit nearby attractions such as Kusatsu Onsen and Mount Shirane


  • Be sure to follow proper hot spring etiquette, such as washing yourself thoroughly before entering the baths
  • Bring your own towel or rent one from the facility
  • Don't forget to hydrate before and after soaking in the hot spring
  • Check the weather forecast before visiting, as the facility may close in case of inclement weather

Overall, Netsunoyu is a must-visit destination for anyone traveling to the Kusatsu area of Gunma, Gunma, Japan. Its high quality water, stunning surroundings, and rich history make it a unique and unforgettable experience.