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Hokkaido · Onsen area

Gūnai Onsen

ぐうないおんせん · 宮内温泉

Hokkaido · 島牧郡島牧村

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Official classification

Spring type (therapeutic classes)

Official spring-type name (as recorded)ナトリウム・炭酸水素塩 - 硫酸塩泉

Source temperature
48.8°C
pH
7.2
Flow rate
3,000 L/min
Radon
Unconfirmed

Appearance & feel

Water colour · Feel

BrownYunohana (mineral flakes) · Yes

Colour and feel are listed only where a source states them. They vary by day and by bath.

This area has basic information only. In-depth articles are being added.

Facilities in this area

Facilities come from the register (Wikipedia, OpenStreetMap, official sites). Those marked "natural spring unconfirmed" are listed on the basis of their name only.

No facility information yet.

Getting there

Public transport unconfirmed

国道229号線を島牧村泊から、道道836号線へ入り約4km

Checked
no check date

Visitor reviews

No reviews yet. While the review platform is being prepared, we do not display fictional reviews or ratings.

Review posting is in preparation, with visit date, facility, comments on water, scenery and access, photos, language and reporting.

Register sources

Data status

Name & locationPublishedCoordinatesIn preparationSpring typePublishedPhotosPublishedFacilitiesIn preparationVisiting info (dated)In preparationEditorial articleIn preparation

Updated 2026-10-09

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