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♨️ Flow-through (Hot spring / bath)
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Wakamatsu Ryokan
Natural Hot Spring（Flow-through）
📍042-0932 1-2-27 Yukawa-cho, Hakodate-shi, Hokkaido
Hours🕐:15:00〜01:00, 05:00〜09:30
Hakone Ginyu
Natural Hot Spring（Flow-through）
Sauna Available
📍〒250-0404 100-1 Miyanoshita, Hakone Town, Ashigarashimo District, Kanagawa Prefecture
Hours🕐:14:00〜10:30
Atagawakan
Natural Hot Spring（Flow-through）
📍〒413-0302 981-3 Naramoto, Higashiizu Town, Kamo District, Shizuoka Prefecture
Hours🕐:15:00〜09:30
Iwanai Onsen Okaerinasai
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍491-21 Nozuka, Iwanai Town, Iwanai District, Hokkaido 045-0024
Hours🕐:06:00〜23:00
COCOFURO Masunoyu
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍1F Maison Kugahara, 2-1-23 Minamikugahara, Ota City, Tokyo 146-0084
Hours🕐:06:00〜00:00
Tokachigawa Onsen Daiichi Hotel Toyosu-tei
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍080-0263 12 Minami, Tokachigawa Onsen, Otofuke-cho, Kato-gun, Hokkaido
Hours🕐:13:00〜23:00, 05:00〜09:00
Dai-ichi Takimotokan
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍South Wing, 55 Noboribetsu Onsen-cho, Noboribetsu, Hokkaido 059-0595
Hours🕐:04:00〜01:00
Shiga Kogen Lodge "Mountain Sauna × Onsen"
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍7148-23 Heian, Yamanouchi Town, Shimotakai District, Nagano Prefecture 381-0401
Hours🕐:09:00〜16:00
Tokachidake Onsen Yumoto Ryounkaku
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍Fukiage, Kamifurano Town, Sorachi District, Hokkaido 071-0500, Tokachidake Onsen
Hours🕐:08:00〜19:00
Niseko Onsenkyo Ikoino Yuyado Iroha
Natural Hot Spring（Flow-through）
Sauna Available
Cold Bath Available
📍〒048-1511 Hokkaido, Abuta District, Niseko Town, Niseko 477
Hours🕐:24 Hours
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