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· Minakami
Minakami Onsen & Adventure — Hot Springs & Rafting
Minakami (みなかみ) is a mountain town in northern Gunma, famous for 18 distinct onsen areas and outdoor adventure sports. T…
Minakamionsenrafting+2
Updated Jul 2026
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Gunma· Katashina
Oze National Park — High-Altitude Wetland Hiking
Oze National Park sits at 1,400-1,600 meters elevation on the Gunma-Fukushima-Niigata border, a high wetland plateau whe…
Ozenational parkwetland+2
Updated Jul 2026