Duck pond

A duck pond was a regular feature of small towns, and usually harboured ducks.

Stockbridge had such a pond; the Fifth Doctor was flung into it when Jane Potter ran into him on her bicycle on her way to school. (AUDIO: The Eternal Summer)

Leadworth also had a duck pond — but, as the Eleventh Doctor noted, one that curiously did not contain ducks. (TV: The Eleventh Hour)