Hannoki Falls, in Toyama Prefecture, Japan, is the tallest waterfall in Japan at a height of 497 m (1,640 feet).
However, it is a seasonal waterfall, which only has water from April to July when the snow covering the Midagahara plateau melts, so its neighbor, Shōmyō Falls, is usually considered the tallest.
[1] Hannoki and Shōmyō falls are twin waterfalls that almost face each other.
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