A Splash of Tradition: The Historical and Therapeutic Evolution of Japan’s Seaside Bathing Culture

The summer heat often leads many of us to the beach, not just for a refreshing escape but also for an opportunity to participate in a timeless tradition: beach bathing or “seawater bathing.” This activity’s roots may seem casual, but there’s a deep history to it, particularly in Japan, a history that intertwines with medical innovation and cultural evolution. In this article, we will explore the fascinating origins, development, and impact of Japan’s seaside bathing culture.

The term “seawater bathing place” may seem quite straightforward, but its origins are more complex. While many attribute the first seawater bathing places to 18th-century Britain, new research suggests that Japan’s shores may host the world’s most ancient seawater bathing sites.

A particular beach in Aichi Prefecture, Japan, known as Ono Seawater Bathing Place, is said to have been frequented by the famous Heian period poet, Kamo no Chomei. This claim has ignited debates about the true origins of seawater bathing. Ancient Japanese practices, such as “tidal hot water treatment,” utilized seawater for healing skin diseases, dating back to periods earlier than records in Britain.

An essential milestone in this historical journey occurred during the Edo period…