Noboribetsu, Japan
Noboribetsu Hot Spring
Noboribetsu is Hokkaido's most concentrated onsen town, built over one of Japan's most geologically active hot spring systems. The area around Jigokudani, Hell Valley, delivers sulphurous steam, iron-rich pools, and a layered ryokan district shaped more by volcanic geology than by design trends. For travellers serious about therapeutic bathing culture, it sits in a different category from the coastal or forest onsen found elsewhere in Japan.
