Don't want to be a fish
Just a cheap and quick test. Got a cheap lavalier mic, put some cling film on it and attached it to a mono pod. Then put it all into the canal while one of the tour boats passed. Your browser does not…
Frozen canal
We had a spot of frost and the canal had about an inch thick "crust" on it. Your browser does not support the audio tag. A narrow boat sailed along as icebreaker and crated this wonderful sound.