5 Facilities
Hokkaido's flagship onsen ryokan: a vast 5,000 m² bathhouse overlooking Jigokudani with 35 tubs fed by five spring types — sulfur, salt, sulfate and more. Day bathing is accepted from 9:00 to 18:00. An indoor heated pool makes it good for families. Tattoos not permitted.
The only bathhouse-style onsen in the middle of Noboribetsu's resort strip. Two spring sources piped from Jigokudani — sulfur and the alum 'eye bath' found nowhere else — for ¥500.
A large hotel whose top-floor 'sky' open-air baths look over the Noboribetsu hills. Day use in two windows — 5–9 am and 11 am–7 pm — for ¥1,200. A little away from the main strip, so quieter.
A free foot bath in an actual river of hot spring water flowing out of Ōyunuma pond, at the end of a forest boardwalk. The perfect finish to a Jigokudani walk. Daylight hours; the trail may close in deep snow.
A large hot-spring resort hotel right in front of the Donan Bus Noboribetsu Onsen Terminal in Noboribetsu, Hokkaido. Its main baths showcase the area's varied spring types - sulfur and salt springs among them - with an open-air bath and sauna for each gender; the Finnish-style self-loyly sauna Tsuki-no-Yu and the open-air Hoshi-no-Yu are the favourites. Day bathing runs in two sessions: mornings 7:00-9:30 (last entry 9:00; 700 yen adults with towel set) and afternoons 13:30-20:00 (last entry 18:00; 1,100 yen adults, towel set 300 yen extra). Regulars come for the quiet morning soak, and the reserved breakfast-buffet day plan (2,200 yen) is popular too. Free parking for 80 cars (day bathing may be suspended when full). About 25 minutes by bus from JR Noboribetsu Station - a handy base for Jigokudani and Oyunuma.