Witness the natural spectacle of sulfur vents at Mt. Io, an active volcano releasing sulfuric gases that often cause the surrounding landscape to turn yellow. A short 2.5 km (1.55 mi) scenic walk from the nearby town or from the onsite parking lot brings you right to the steaming vents and the rocky, barren landscape. The parking lot's fee includes access to the Lake Mashu caldera viewpoint. Plan a Teshikaga-cho trip in moments using our itinerary builder.
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Tours To Mt. Io
Mt. Io Reviews
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We took the hiking trail from the train station, which was pleasant. After the Mt.Io the trail continues to Kawayuonsen village, so we had a coffee in the village and took a bus back to Kawayuonsen... more »
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Nice for a few photos but parking is expensive at 500 yen . Spend about 30 min here . Smell of sulphuric is quite strong. more »
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