Are public baths free in Japan?
Are public baths free in Japan? Public baths are segregated by gender, and swimsuits are not worn (read more on bathing rules). The typical admission fee starts around 200 yen for small facilities and can be 2000 yen or more for large complexes. Some public baths provide natural hot spring water, although the typical sento uses heated tap water.
Who should avoid onsen?
Avoid bathing in an onsen in the following cases. If you have chronic bronchitis and fever or difficulty in breathing. If you have stable angina and chest pain becomes frequent. Bathing may cause serious problems with dehydration or thrombosis.