Hi Darwinek, 

Thanks again for working on rivers. I hope NHK will broadcast some more shows for you! It sounds like an interesting series.

The caption of the photo says something like this: 

The Kuma River near Shiroishi Station on the Hisatsu Line  

Ashikita, Kumamoto in Ashikita District, Kumamoto and Kuma, Kumamoto in Kuma District, Kumamoto  

肥薩線白石駅付近の球磨川　熊本県葦北郡芦北町／球磨郡球磨村

Best regards,