Ryokan (inn) a family home. Minshuku often serve as the only type of accommodation in towns or villages too small to warrant a dedicated hotel or ryokan. The overall experience is much the same, but the food is simpler, dining may be optional and is often communal, rooms do not usually have a private toilet, and guests may have to lay out their own bedding. Ryokan (inn) A is a type of traditional Japanese inn that has existed since the eighth century A.D. during the Keiun period, in which the oldest hotel in the world, Nishiyama Onsen Keiunkan, was created in 705
Onsen found in some onsens with poor sanitation. Revelations of poor sanitary practices at some onsens have led to improved regulation by hot-spring communities to maintain their reputation. There have been reports of infectious disease found in hot bodies of water worldwide, such as various "Naegleria" species. While studies have found the presence of "Naegleria" in hot spring waters, the worrisome "Naegleria fowleri" amoeba has not been identified. Nevertheless, fewer than five cases have been seen historically in Japan, although not conclusively linked to onsen exposure. Many onsens display notices reminding anyone with open cuts, sores, or lesions not to bathe.