We spent our time in cities, but all around we saw evidence of a well thought out but urgent drainage system.  I asked my friend Micheal if there was a rainy season, hoping for cheap airfares on a later return.  He affirmed that Japan had a “bitch” of a rainy season, but they were proud of their water quality and quantity.

Contrast with the US, where we still try desperately to jettison it off of the roads to enable vehicular traction.