Kiyomasa Well

Quoted from the nearby wooden panel:
"The Kiyomasa-Ido Well was first belonged to Lord Kiyomasa Kato during Edo period. This well is the fountainhead of Nan-Chi (South pond) and the pure water gushes out in a steady flow all the year round. This well is famous for the ingenious way of sinking and the superiority of water's quality. NO DRINKING."
Surprisingly little engrish in there.