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Silk Onsen Yamabiko
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍〒668-0361 165 Shoboji, Tanto-cho, Toyooka-shi, Hyogo Prefecture
Hours🕐:06:00〜23:00
Kokusaiji Natural Hot Spring Bijin-no-Yu
Natural Hot Spring
Sauna Available
Cold Bath Available
📍〒366-0033 510-1 Kokusaiji, Fukaya City, Saitama Prefecture
Hours🕐:10:00〜00:00
37BASE
Sauna Available
Cold Bath Available
📍〒932-0203 Iwaya 16-1, Nanto City, Toyama Prefecture
Hours🕐:09:00〜23:00
Oku-Yunohama Onsen Tatsu no Yu
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍997-1201 2-4-47 Yunohama, Tsuruoka City, Yamagata Prefecture
Hours🕐:11:00〜09:30
Matto Seaside Onsen Otsukarisama
Natural Hot Spring
Sauna Available
Cold Bath Available
📍2665-1 Tokumitsu-cho, Hakusan, Ishikawa 924-0071
Hours🕐:10:00〜22:30
Ohtawara Onsen Taiyo no Yu
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍324-0062 Tochigi Prefecture, Ohtawara City, Nakatawara 593-3
Hours🕐:10:00〜22:00
Jizo Onsen Yuniiku
Natural Hot Spring
Sauna Available
Cold Bath Available
📍3435 Usune-cho, Numata City, Gunma 378-0031
Hours🕐:13:00〜22:00
Sakuyama Onsen Kiminoyu
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍324-0032 Tochigi Prefecture, Otawara City, Sakuyama 2508
Hours🕐:10:00〜22:00
Sauna Center Shin-Okubo
Sauna Available
Cold Bath Available
📍〒169-0073 1-10-6 Hyakunincho, Shinjuku Ward, Tokyo
Hours🕐:24 Hours
Senju Onsen Sennen no Yu
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍948-0144 Niigata Prefecture, Tokamachi City, Mizuguchizawa 121-7
Hours🕐:10:00〜22:00
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