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Jane_TravelHong Kong, China

Senior Travel Expert

Experience the Earth's Interior｜Hokkaido's Sulfur Mountain Geothermal Valley

This place truly feels like the Earth is breathing as soon as you step in! The mountain walls constantly emit smoke, there's a strong sulfur smell, and you can even hear bubbling sounds beneath your feet. Starting from Mashu Lake Rest House, you can walk along the geothermal valley trail and gaze at the majestic and somewhat mysterious Sulfur Mountain from afar. It's highly recommended to visit during the autumn foliage season, as the vibrant colors make for stunning photos.

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Posted: Jul 31, 2025

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