Onsen with an open-air bath in Nagasaki
Rotenburo — bathing outdoors, which is what most people picture when they picture an onsen.
Unzen Yokayu
雲仙よか湯
Policy not published (day visit)Policy not published (overnight)Private bathDay visits without staying
Kokumin Shukusha Seiunso
国民宿舎 青雲荘
Policy not published (day visit)Policy not published (overnight)Private bathDay visits without staying
Inasayama Onsen Fukunoyu
稲佐山温泉 ふくの湯
Tattoos not allowed (day visit)Private bath
Nagasaki Onsen Ark Land Spa
長崎温泉 Ark Land Spa（i+Land nagasaki）
OK if covered (day visit)Policy not published (overnight)Day visits without staying