A whole lot of rainfall drops in the Aso region. Some of it flows out in rivers, while much percolates into a huge aquifer which eventually surfaces where the crust thins in the Suizenji-Ezuko area.
Lake Ezu is a Kumamoto treasure, yet its clear, shallow water leads to explosions of vegetative growth which must be periodically removed for ecosystem health. Our friend Sean Benward noted a drive to remove this vegetation, scheduled to be held Tuesday, November 20, from 10 AM to 12 PM. Wear shorts. - William