Billion Onsen and Spa
Day SpaKuala Lumpur
An onsen-style day spa in Kampung Baru, Kuala Lumpur, with thermal pools, sauna, steam room and couples treatments.
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Onsen
Japanese hot-spring baths, often with ryokan stays.
5 spas match
Da Nang
A Korean-style bathhouse and onsen complex in Da Nang's Hoa Xuan area, with hot spring baths, 11 sauna rooms, massage and a riverside restaurant.
$$Susukino Tennen Onsen Toukakyou
Hotel SpaSapporo, Hokkaido
Natural hot spring inside Sapporo's Jasmac Plaza Hotel in Susukino, open to day visitors and hotel guests alike, with sauna and a rest lounge.
$$Kounoyu
Hotel SpaKurokawa Onsen, Kumamoto
A nine-room ryokan in Kurokawa Onsen where every detached suite has its own source-fed open-air bath, open to overnight guests only.
$$$$Ibusuki Shusui-en
Hotel SpaIbusuki, Kagoshima
A ryokan-style hotel in Ibusuki with source hot-spring baths, both shared and private, open only to overnight guests.
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