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Ponpira

Horokanai, Hokkaido, Japan
Ponpira
Location
Horokanai, Hokkaido, Japan
Water type
sulfurous
Temperature
44 °C
pH
6.5

Water profile

Thermicity
Sedative
44 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Ponpira is a thermal spring facility in Hokkaido whose name derives from the Ainu language—the indigenous language of Hokkaido's original inhabitants—with pon meaning small and pira meaning cliff or steep riverbank, preserving in its name the linguistic and cultural heritage of the Ainu people who knew this landscape for millennia before Japanese settlement and who understood its thermal waters as part of the living spiritual geography of the land. Hokkaido's thermal springs emerge from volcanic geology quite different from Honshu's, shaped by the subduction dynamics of the Pacific plate beneath the northernmost island, and Ponpira's waters carry the mineral character of this northern volcanic system. Bathing at a spring whose name comes from the Ainu language is to acknowledge the indigenous knowledge of the land's thermal resources that preceded and informed the Japanese thermal bathing tradition across all of Hokkaido's extraordinary landscape.

Insider tip — Ponpira Onsen occupies a remote corner of northern Hokkaido near Horokanai, where geothermal heat from the Teshio mountains drives a sulfurous spring to the surface. The Ainu place name Ponpira evokes the indigenous heritage of the Teshio River valley, which was one of the last Hokkaido regions to be settled by Wajin farmers. Bathing here in winter offers views of completely frozen river channels and rime-frost coated birch forests. The extreme stillness and darkness of the Hokkaido backcountry make night bathing under the stars a memorable experience.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 44 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).