A "traditional accommodation" is every kind of non-modern lodging that are different from hotels. We will especially present here ryokan and minshuku, which can also be luxury housing where the hosts provide a high-end service to their guests.
Ryokan traditional inns are appreciated in big cities like Tokyo, Kyoto and in very touristic areas such as Mount Fuji and Hakone. Ryokan can be much cheaper in the countryside while offering a very pleasant and typical atmosphere.
We do recommend trying such traditional accommodation when traveling in Japan to have a full taste of the country’s culture and way of life.