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