With the invention of indoor plumbing and bathtubs (not really news to anyone, we’d hope), the traditional public bath houses and hot springs of Japan are now used for relaxing getaways more than actual hygienic necessity. Heck, even capybara soak in hot springs to relax!
Hot springs, known as onsen in Japanese, are also becoming popular with foreign visitors, at least those brave enough to bare it all in front of strangers. For health and safety reasons, there are quite a few rules to pay attention to when soaking in a public bath. A very nicely designed etiquette poster, which recently surfaced on TripAdvisor, is very thorough and is even teaching Japanese people a thing or two about the bathing experience!