Obuke(The Great Gusher)

🌿 Nature & Parks · 仙北市, 秋田県 · ⭐ 4.7

Obuke (The Great Gusher) is the source of Tamagawa Onsen, featuring Japan's largest single-source hot spring flow with over 9,000 liters of 98°C water erupting every minute. This dramatic geothermal spectacle boasts the country's highest acidity level (pH 1.2) and allows visitors to witness powerful volcanic activity up close, including massive steam vents, visible sulfur crystals, and even experience a free natural bedrock bath heated by geothermal energy. The highly acidic, radium-containing waters have attracted therapeutic bathers for generations, making this a unique destination combining natural wonder with traditional healing practices.

Visitor Information

📍 Address

仙北市, 秋田県

🎟 Admission

Free

🚉 Access

1 hour by bus from Tazawako Station

🕐 Hours

Sun	0000 – 2400

🔗 Official

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💡 Tips for Visitors

Parking costs ¥500 and the site has good facilities including restrooms and rest huts. Remove all jewelry and precious metal accessories before visiting, as the highly acidic steam can cause discoloration; also protect cameras and electronics from the corrosive volcanic gases. If trying the bedrock bath, start with shorter exposure times to acclimate to the intense geothermal heat, and those with sensitive skin should exercise caution due to the extremely acidic water quality.