gongoozler       
noun [ C ] UK informal uk/ɡɒnˈɡuːz.lər/ us/ɡɑːnˈɡuːz.lɚ/
 喜欢在运河岸边看船的人
a person who enjoys watching boats and activities on canals (= long, narrow, artificially made stretches of water)
  Canal locks often attract gongoozlers. 运河水闸常常吸引一众喜欢看船的人。 
 - More examples
 - The term is regularly used, perhaps with a little irony, by gongoozlers to describe themselves and their hobby.
 - Gongoozlers often like to collect or create canal related artwork.
 - The Falkirk Wheel is a spectacular feat of engineering very popular with gongoozlers.