From Longman Dictionary of Contemporary Englishbatherbath‧er /ˈbeɪðə $ -ər/ noun 1 [countable]DSS British English someone who is swimming in the sea, a river, or a lake2 → bathers
Examples from the Corpus
bather• A Shambellie pug, a bather, a negro-a potted plant.• At the time of his writing Barrow was a hamlet popular for bathers and with two large inns.• A new group of bathers is coming in.• Chief technical officer Billy Dodds said the minimum standards were adequate and cover would be increased in line with the number of bathers.• He followed Miss Sadie into her bedroom, where he admired a small, vibrant oil that depicted a party of bathers.• Local populations of some dolphins have been severely affected by the use of shark nets to protect bathers.• Courbet's bather, however, was a ruddy faced older woman, and she was washing rather than bathing.• We continued on to Musselwick Sands, where bathers were enjoying the beach. 