Kojigoku Onsen is located just a 15-minute walk from the center of Unzen Onsen.





Kojigoku Onsen
Kojigoku Onsen (小地獄温泉館) is a hidden gem nestled in a serene forest, just a short 15-minute walk from the town center. This charming public bathhouse offers a peaceful, off-the-beaten-path retreat, perfect for those looking to unwind in nature's embrace. Surrounded by lush greenery, the atmosphere is both traditional and calming, allowing visitors to fully immerse themselves in the natural beauty and tranquility of the area. The onsen provides a simple, refreshing bathing experience, far from the crowded, commercialized hot springs found elsewhere.
Inside, Kojigoku Onsen features two rustic stone baths, one for men and one for women, each with soothing waterfalls that cascade gently over the stones, offering a natural back massage as you soak. Behind the bathhouse, a small hot spring field adds to its rustic charm, further enhancing the sense of relaxation and connection to nature. Whether you're seeking peace and quiet or an authentic, intimate onsen experience, Kojigoku Onsen is the perfect destination for travelers who wish to connect with Japan’s hot spring culture in a more personal and peaceful setting.
Hours and Fees
- Opening hours
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9:30 to 20:00 (until 19:00 from November to April)
- Closed
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Wednesdays (except national holidays)
- Entrance fee
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500 yen
Getting there
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