A wild spring. There may be no caretaker; bathe at your own risk and respect local rules and the environment.

Photo of Akayu Onsen
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Soica2001 (talk) Public domain View original page

Hokuriku & Koshinetsu · Wild spring

Akayu Onsen

あかゆおんせん · 赤湯温泉

Niigata · 南魚沼郡湯沢町

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Official classification

Spring type (therapeutic classes)

Official spring-type name (as recorded)塩化物泉

Source temperature
41–51°C
pH
6.5
Flow rate
37 L/min
Radon
Unconfirmed

Appearance & feel

Water colour · Feel

Brown

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

Hard to reach by public transport

関越自動車道湯沢ICから車で約1時間、下車後徒歩2時間。

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.

Overview

赤湯温泉(あかゆおんせん)は、新潟県南魚沼郡湯沢町三国にある温泉。徒歩でしか行けない秘湯である。越後湯沢温泉郷のひとつとして扱われる事もある。

This overview is based on the lead section of the Japanese Wikipedia article "赤湯温泉 (新潟県)" (CC BY-SA 4.0). View original page

Register sources

Data status

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

Updated 2026-10-09

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