When people think of hot springs in Japan, places like Hakone or Kyoto often come to mind first. But for travelers looking for authentic onsen culture, fewer crowds, and high-quality hot spring water, Gunma Prefecture quietly stands out as one of Japan’s best onsen destinations.
Located just north of Tokyo, Gunma is home to some of the country’s most famous hot springs—Kusatsu Onsen, Ikaho Onsen, Minakami Onsen, and many lesser-known local gems. What makes Gunma special is not only the number of onsen, but the variety of water quality, scenery, and atmosphere you can experience within a single region.
A Prefecture Shaped by Hot Springs
Gunma sits on volcanic terrain, which explains why it has one of the highest concentrations of natural hot springs in Japan. Each onsen town offers different mineral compositions, from sulfur-rich waters to iron and sodium springs, each believed to provide unique health benefits.
This diversity means that traveling through Gunma feels like visiting multiple onsen regions at once, rather than repeating the same experience.
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Kusatsu Onsen: The Famous Name Everyone Knows
Kusatsu Onsen is Gunma’s most well-known hot spring town—and for good reason. Its extremely hot, acidic waters are said to be among the strongest in Japan. The town’s iconic Yubatake (hot water field) creates a dramatic steam-filled landscape right in the center of town.
However, Kusatsu is only one part of Gunma’s onsen story.
Beyond Kusatsu: A Slower, More Local Experience
What truly sets Gunma apart is what lies beyond its famous spots. Areas like Minakami Onsen offer riverside baths surrounded by mountains, while Ikaho Onsen charms visitors with stone stair streets and retro ryokan.
Many of these towns remain relatively quiet, especially on weekdays, making Gunma ideal for travelers who want to relax without heavy tourist crowds.
Easy Access from Tokyo
Another reason Gunma is perfect for onsen travel is its convenience. From Tokyo, many onsen towns can be reached in under two hours by train, making Gunma suitable for:
- Weekend trips
- Short stays
- First-time onsen travelers
This balance of accessibility and authenticity is rare.
Why Gunma Is Perfect for Onsen Beginners and Enthusiasts Alike
Whether you are new to Japanese hot springs or a seasoned onsen lover, Gunma offers:
- Clear onsen etiquette and beginner-friendly facilities
- Traditional ryokan with long histories
- Affordable accommodations compared to major tourist areas
- Seasonal scenery, from snow-covered baths in winter to lush green mountains in summer
Gunma does not try to impress loudly—it simply delivers consistently excellent onsen experiences.
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Gunma Prefecture may not always be the first name mentioned in travel guides, but for hot spring lovers, it is one of Japan’s most rewarding regions to explore. From famous sulfur baths to hidden mountain retreats, Gunma proves that Japan’s best onsen experiences often lie just beyond the spotlight.
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