A common theme in Northern European flood myths are the church bells of submerged cities. This motive can be found all along the ccoasts of Brittany, Wales, England, Germany and Poland. The popular folk song “Bells of Aberdovey” relates to the legend of the sunken kingdom Gwydneu (more commonly known as Cantr’er Gwaelod) off the coast of Wales. The song is most likely not an original folksong at all but a composition from 1785 for an English Opera with lyrics in English not Welsh. The today popular Welsh version was first printed in 1905.
About the motif of submerged bells see also the art installation by Marcus Vergette in this post.