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Mt. Io, Teshikaga-cho

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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Mt. Io Reviews
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TripAdvisor Traveler Rating 4.0
433 reviews
TripAdvisor
  • If the smell is strong, you can feel enough sulfur in the parking lot even if you do not go to the crater. The location was bright and beautiful. The hot spring egg of the shop seems to be a specialty.
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  • I visited by regular sightseeing bus. The moment I got off the bus, the smell of sulfur got my nose. Mt. Iwo at an altitude of 512 m. According to the bus guide, the surrounding alpine plants are rare. It was able to approach the place where the fumes boiled considerably, and the rough scenery which was indescribable was considerably powerful.
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