Resort Spa in Japan

Nikko, Tochigi

A remote hot-spring ryokan in Nikko's Oku-Kinu valley, with naturally flowing spring water and a choice of log-cabin or traditional lodging.

Hakone, Kanagawa

Luxury ryokan in Hakone with every room opening onto a private outdoor hot spring bath, plus a separate day-use spa with water garden and sauna.

Kusatsu, Gunma

Hotel ryokan in Kusatsu with two hot spring sources, 23 baths including private soaking rooms, rock bed bath and sauna, open to overnight guests.

Kamijima, Ehime

An all-inclusive resort on Yugejima island in Setouchi's inland sea, with ocean-view outdoor baths, ocean-front rooms, and a day-pass option.

Kusatsu, Gunma

A reservation-only hot spring resort spa in Kusatsu, Gunma, with a thermal pool, sauna and overnight stays, in the upscale price tier.