The waters are drawn from 2 sources, Shikanoyu, which has more than 1380 years of history,
and Okunosawa hot spring, which is placed above the Ohmaru Onsen.
All of the hot springs are directly taken from the spring source,
so you can enjoy natural Onsen without any heat, water or additives added.
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- Description
- Shikanoyu fountain source: simple acid sulfuric spring (hydrogen sulfide type) around pH2.6
Okunosawa fountain source: simple spring (weak acid hypotonic hot spring) around pH4.0
- Efficacy
- Neuralgia, rheumatism, gastrointestinal diseases, female disorders, skin diseases, exhaustion
For males: Large onsen / Open-air bath Nasunoyu
For females: Large onsen / Open-air bath Myobannoyu
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- Open hours
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14:00～24：00、5：00～9：00
※Please be noted that the opening hours may change.
- Bathing without booking is welcome
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14:00～20:00
※Limited to 100 persons per day
Opened from August 2013, you can enjoy natural hotspring with bathtabs made with local Ashino Ishi stones, both in Marunoyu and Ichinoyu. We take the rare style of changing bath water each time, so everyone can enjoy "Ichiban buro" (the first in bath). In the bathtubs there are valves for cold water and hot spring water, so you can adjust the temperature at your preference.
Opened from August 2013, you can enjoy natural hotspring with bathtabs made with local Ashino Ishi stones, both in Marunoyu and Ichinoyu. We take the rare style of changing bath water each time, so everyone can enjoy "Ichiban buro" (the first in bath). In the bathtubs there are valves for cold water and hot spring water, so you can adjust the temperature at your preference.
The opaque hot spring taken from Shikanoyu has one of the largest bathtubs in the Nasu area. You can choose from variety of hot, medium-hot, Neyu(float-in hot spring), and open-air baths. Enjoy the greatest scenery in the area to view the seasons of Nasu.
The opaque hot spring taken from Shikanoyu has one of the largest bathtubs in the Nasu area. You can choose from variety of hot, medium-hot, Neyu(float-in hot spring), and open-air baths. Enjoy the greatest scenery in the area to view the seasons of Nasu.
There are hot spring with mix of Shikanoyu tubs and Okunosawa spring source tubs along with open-air bath spaces. The Okunosawa spring is very popular with it's weak acid nature.
There are no additives or chemicals inside the spring water, so you can enjoy a natural hot spring experience that is good for your skin.
There are hot spring with mix of Shikanoyu tubs and Okunosawa spring source tubs along with open-air bath spaces. The Okunosawa spring is very popular with it's weak acid nature.
There are no additives or chemicals inside the spring water, so you can enjoy a natural hot spring experience that is good for your skin.
