When did NHK Documentary Season 21 Episode 2 air?
NHK Documentary Season 21 Episode 2 aired on January 27, 2019.


Hard-hitting documentary series that takes an in-depth look at some of the political, economic, and social challenges that Japan and our world is facing.
In Japan, many rivers are known for their clear, beautiful water. But the Choshi River is so free of dirt and sediment that you can "see the unseeable." Creatures and plants far below the surface that would not be visible in other rivers can easily be viewed. What's the secret behind the Choshi's amazing clarity? Join us as we explore the geology and ecology of this remarkable river.
Direct answers for episode-level questions and details.
NHK Documentary Season 21 Episode 2 aired on January 27, 2019.
This episode runs for approximately 50 minutes.
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