The other day, I found this article on the newspaper.
"Winter swimming", in Japanese KANCYU SUIEI. The literal meaning is to swim in a cold cold cold--- sea or river.
This is a kind of ceremony in winter.
Swimming in the sea or rivers in midwinter is called winter swimming It is said to have originated in the Edo period when swimming was practiced in each domain every during the wintertime.
Oh, I didn't know that, I thought its origin would be a ritual of Shintou religion.
It isn't a ritual. it's a ceremony.
I sometimes see the ceremony on TV in winter, but I've never seen one directly on my eyes.
Do you have such ceremony in your country???