(GMT)04 FEB 2017 GLA2CU:
It is no exaggeration to say that the onsen are the Japanese national obsession. Many Japanese go to the onsen at least a couple of times a year.
In many onsen, you need to be naked to get into the water. Traditionally, onsen were born without distinction of sex, but during the process of Westernization began in 1860, the onsen open to males and females at the same time became more and more rare.
Over 95% of Japanese onsen now have separate bathrooms for men and women. Only children can accompany the parent regardless of gender.
The onsen are also a valid reason to visit the towns of rural Japan. Many charming villages and entire cities would not exist without the economy created by the onsen
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