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Kanto · Cold mineral spring

Isohara Onsen

いそはらおんせん · 磯原温泉

Ibaraki · 北茨城市

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Official classification

Spring type (therapeutic classes)

Official spring-type name (as recorded)含硫黄-ナトリウム-塩化物・炭酸水素塩冷鉱泉(硫化水素型)

Source temperature
20°C
pH
Unconfirmed
Flow rate
Unconfirmed
Radon
Unconfirmed

Appearance & feel

Water colour · Feel

Unconfirmed

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

Reachable by public transport

鉄道:JR常磐線磯原駅から車で3分、車:常磐自動車道北茨城ICより車で7分。

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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