For some people it is absolutely essential that they keep water out of their ears. They may have had recent ear surgery, they could have perforated ear drums or be prone to recurrent ear infections. Others simply can't stand the sensation of water in the ears.
Cheshire Hearing Centres supply custom made in the ear plugs in a variety of colours. Fitted correctly they will reduce the likelihood of water entering the ear. Though called swim plugs, they can be used in any situation where you risk getting water in the ears such as showering or bathing. A typical swim plug customer could range from a child who has recently had grommets fitted to a surfer or diver.