群馬県 · Kanto Region
Gunma Hidden Gems
Onsen country — more hot-spring water flows here than almost anywhere in Japan, set against mountains and highland moors.
2 spots
Climate & Best Season
Hot, thundery summers on the plain; cold, snowy winters in the highlands. Onsen towns are best in winter, hiking in autumn.
Famous For (Food)
- Mizusawa udon
- Konnyaku
- Yakimanju
- Shimonita negi
Signature Sights
- Kusatsu Onsen
- Ikaho Onsen stone steps
- Mt. Haruna & Mt. Akagi
- Tomioka Silk Mill (UNESCO)
Gunma· Kusatsu
Kusatsu Onsen Yubatake — Healing Hot Spring Field
Kusatsu Onsen (草津温泉) is Japan's most famous hot spring resort, renowned for its yubatake (湯畑, 'hot water field') — a ste…
Kusatsuonsenyubatake+2
Updated Jul 2026
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Gunma· Kusatsu
Kusatsu Onsen Ryokan Stay — Traditional Inn Experience
A night at a Kusatsu ryokan follows a ritual refined over centuries: check in around 15:00, change into the cotton yukat…
ryokanKusatsuonsen stay+2
Updated Jul 2026