St Albans, United Kingdom
This park is along the River Colne. In the 1920s gravel was extracted and three lakes were left. Woods have grown around these lakes, one of which is in the River Colne's centre. The Reserve is twenty-six acres and is traversed by several footpaths. Various edible fish are in the lakes.
Listen to the audio guide for Broad Colney Lakes Nature Reserve Free on WIP — starts by itself when you arrive, even with the screen off