Ryo Kan
Hotel SpaMexico City, Quintana Roo
A Japanese-style hotel spa in Mexico City's Cuauhtémoc district with tatami suites, outdoor onsen baths and a $2,080 day pass for couples.
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Hotel Spa
Spas inside hotels, many open to non-guests.
4 spas match
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.
$$$Zuihouen
Hotel SpaArima Onsen, Hyogo
Hotel spa in Arima Onsen with Arima's rare iron-rich "ginsen" waters, outdoor baths, sauna and jacuzzi, run as an all-inclusive overnight stay.
$$$Yufudake Ichibo no Yado Kirara
Hotel SpaYufuin, Oita
A small hillside ryokan near Yufuin's town center where every room has its own half-open-air bath filled with 100% source hot-spring water and a view of Mt.
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