Kusatsu Onsen

A peerless hot spring where you can fully enjoy bathing

Introduction of Hot Springs (Onsen)

This hot spring is situated at the foot of Mt. Kusatsu-Shirane, which rises just near the prefecture border of Nagano, in the northwestern part of Gunma Prefecture.
Kusatsu Onsen has some nicknames such as the “Hot Spring of the Nation” and “one of the Best Three Hot Spring of Japan”. This area is filled with steam, which smells the characteristic odor of sulfur spring, and about 150 new and old hotels stand around the spring source called “yubatake”.
It is also known as “the high-temperature hot spring of the biggest gush of water in Japan” and “a natural free-flowing hot spring”.
The water has so many good effects that it is said that it cures all diseases except love sickness.

Effects and characteristics of Hot Springs

This natural sulfur spring flowing straight from the source has high sterilizing power, so local people has cured their wounds with this water ever since ancient times. The spring quality is sulfur, sulfate spring. It has effects on neuralgia, arthralgia, fatigue, cold constitution and so on. This artesian spring gushes out 32300 liters of water per minute, which is the biggest quantity of gush in Japan. As high-temperature spring water from the source is directly used for bathing, a unique method was invented here; people cool bathwater by using some big wooden paddles, singing the song of Kusatsu, then with the signal, they take a bath all together only for 3 minutes.
  • Spring Qualities

    Sulfate hot-spring Sulfur hot-spring
  • Efficacy

    Neuralgia Frozen shoulder Muscle stiffness Coldness Peripheral circulation disorder Mild hypertension Cuts


Access by public transportation.

About 20-minute drive from JR Naganohara-Kusatsuguchi station

Access by car

About 80-minute drive from Shibukawa-Ikaho Interchange off of Kanetsu Expressway

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