登別 · BEST 8
Gensen kakenagashi means fresh spring water flows straight into the tub and out again — no recirculation, no reheating. It's the first thing onsen connoisseurs look for.
Top 8 of 8 properties, ranked by rating and popularity

Hokkaido · Noboribetsu
“Ever heard of a ryokan with 35 different baths?”

Hokkaido · Noboribetsu
“A Roman-style domed bathhouse from 1938, and 88 years of history flowing through Noboribetsu”

Hokkaido · Noboribetsu
“Four spring types drawn from Jigokudani, and 90 years of homemade craft”

Hokkaido · Noboribetsu
“A Noboribetsu night spent soaking through 31 different hot springs”

Hokkaido · Noboribetsu
“Undiluted sulphur water piped from Jigokudani, in a ryokan of just 21 rooms”

Hokkaido · Noboribetsu
“In the land of the oni, surrender to a legendary bath”

Hokkaido · Noboribetsu
“A roofless open-air bath under a sky full of stars”

Hokkaido · Noboribetsu
“Karurusu's only self-owned spring, the village's original bathhouse”