Entrance of a wooden communal bathhouse
Photo information

Tohoku · Onsen area

Naruko Onsen

なるこおんせん · 鳴子温泉

Miyagi · 大崎市

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Official classification

Spring type (therapeutic classes)

Official spring-type name (as recorded)Across the valley: sulfur, sulfate, bicarbonate, chloride, simple, iron and acidic springs (lacking only carbon-dioxide, iodine and radioactive types). Takinoyu: acidic alum-vitriol glauber-salt hydrogen-sulfide spring; Waseda Sajiki-yu: salt- and glauber-salt-bearing sulfur spring (neutral)

Source temperature
Unconfirmed
pH
2.9–6.6
Flow rate
Unconfirmed
Radon
Not present

Appearance & feel

Water colour · Feel

Changes colour

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

What makes it special

Seven of Japan's ten official spring types in one valley. The communal Takinoyu by the station costs 300 yen, and the town lends you wooden geta to clatter from bath to bath.
Why?

The tourist association lists the three spring types the valley lacks (carbon-dioxide, iodine and radioactive), meaning the other seven are present; Takinoyu is 300 yen, 7:30–21:00. Wikipedia notes the inns and the station office lend geta for walking the town.[1][2][3]

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.

Public bathhouse · Open

Takinoyu communal bath

Day-use bathing
Yes
Fee
¥300checked 2026-10-09
Hours
7:30–21:00checked 2026-10-09
Baths1
TypeGenderSourceBath temperatureFree-flowingAdded waterHeatedRecirculatedDisinfected
Indoor bathSeparateTakinoyuUnconfirmedUnconfirmed[3][2]Unconfirmed[3][2]Unconfirmed[3][2]Unconfirmed[3][2]Unconfirmed[3][2]
Public bathhouse · Open

Naruko Waseda Sajiki-yu public bath

Day-use bathing
Yes
Fee
¥660checked 2026-10-09
Hours
9:00–21:30checked 2026-10-09
Baths2
TypeGenderSourceBath temperatureFree-flowingAdded waterHeatedRecirculatedDisinfected
Indoor bathSeparateWaseda Sajiki-yuUnconfirmedUnconfirmed[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]
Private bathUnconfirmedWaseda Sajiki-yuUnconfirmedUnconfirmed[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]

Getting there

Reachable by public transport

The town begins right outside Naruko-Onsen Station on the JR Rikuu East Line. From Sendai, take the Shinkansen to Furukawa (about 15 min) and the Rikuu East Line from there (about 45 min); from the Yamagata side, about 60 min from Shinjo. By car, about 28.5 km from Furukawa IC on Route 47.

Getting there
Naruko-Onsen Station (JR Rikuu East Line) · 5
Through the year
A special Koyo-go bus runs to Naruko Gorge in the autumn-colour season (26 Oct–8 Nov in 2026)
Checked
2026-10-09

About the water

Naruko's distinction is variety. Within the small Yumoto and Shin-yashiki districts, alkaline and acidic springs rise side by side, and the association counts seven of Japan's ten spring types across the valley, lacking only carbon-dioxide, iodine and radioactive. Geologists describe a hot, alkaline sodium-chloride water rising from depth as the main flow, shifting to acidic sulfate and then neutral bicarbonate types away from the centre. Takinoyu is acidic at pH 2.9 and smells of sulfur; Waseda Sajiki-yu is neutral at pH 6.6, so two baths a few minutes apart feel entirely different. Colour varies by source; Wikipedia mentions a green tint.

Indications (as posted on the analysis)

The association publishes the Ministry of the Environment's 2014 table of indications. Sulfur springs: atopic dermatitis, psoriasis, chronic eczema, skin infections; chloride and sulfate springs: cuts, poor peripheral circulation, cold sensitivity, dry skin, among others

Indications are an official statement based on the water analysis, not a guarantee of treatment. They are kept separate from opinions.

SourceSource temperaturepHRadonChecked
TakinoyuUnconfirmed2.9Unconfirmedno check date
Waseda Sajiki-yuUnconfirmed6.6Unconfirmedno check date

Three things not to miss

Entrance of a wooden communal bathhouse
Photo information
01

Takinoyu communal bath

Yumoto district, below the onsen shrine, a few minutes' walk from the station An old bathhouse regarded as the sacred bath of the onsen shrine. Source water falls like a cascade from a wooden flume into hiba-cypress tubs. Acidic alum-vitriol sulfate hydrogen-sulfide spring, pH 2.9, smelling of sulfur. Adults 300 yen, children 100, open 7:30–21:00 (last entry 20:30). No showers; run by a local preservation society.

Tohoku's communal-bath culture for 300 yen, and a place where locals still gossip in the water.[2][3]

A modern public bathhouse with yellow walls
Photo information
02

Waseda Sajiki-yu

Shin-yashiki district, walking distance from the station A public bath on a spring that seven Waseda University engineering students struck during a drilling exercise in 1948. The striking yellow building was redesigned in 1998 by Waseda architect Osamu Ishiyama. Adults 660 yen, 9:00–21:30; a private outdoor bath costs 1,100 yen extra per 50 minutes.

A students' field exercise that became the town's bath; there is nothing like it elsewhere.[3][2]

A telephone box shaped like a kokeshi doll
Photo information
03

Walking the kokeshi town in geta

From the station to Takinoyu Naruko is one of the three birthplaces of kokeshi dolls. A kokeshi postbox, a kokeshi phone box and a six-metre kokeshi stand along the street. Under the slogan "geta mo Naruko" the inns and the station information office lend wooden clogs, and there is a footbath and handbath at the station.

One of the few onsen towns where the walk itself is the point.[2]

The story

One of the three great baths of the north

Naruko ranks with Iizaka and Akiu as one of the three famous baths of the old northern provinces and is a designated recuperation spa. One legend derives the name from nakiko, "crying child", after a baby of the warrior Yoshitsune was first bathed here. In the early 1800s it was the busiest cure spa in the Sendai domain; most guests were farmers who came in the off-season, counted their stay in seven-day "rounds", stayed two or three, and cooked for themselves.[2]

Kokeshi and the woodturners

Old Naruko had a hundred or so households and streets of shops selling turned wood, bentwood and lacquer, where cure guests from neighbouring Kawatabi and Akayu came for souvenirs. The dolls that woodturners made for guests' children became kokeshi, and Naruko is counted with Tsuchiyu and Togatta as one of the three birthplaces. Collectors say kokeshi collecting begins and ends in Naruko. The local dolls, whose heads squeak when turned, are still made in the town's workshops.[2]

The spring the students struck

In 1948 seven civil-engineering students from Waseda University struck a hot spring during a drilling exercise, and it became the Waseda bath. In 1998 Waseda architecture professor Osamu Ishiyama rebuilt it as the yellow Waseda Sajiki-yu. Set against the wooden flume of Takinoyu a few minutes away, it shows both ends of Naruko's bathing history.[2][3]

Going solo

Easy for solo travellersUnconfirmed
Weekend / peak restrictionsUnconfirmed
Where to eat dinnerThe association notes plenty of eateries and souvenir shops in town, plus a spot to cook eggs in the spring water
Private bathYes

checked 2026-10-09

Through the year

Recommended months

Months open

JanFebMarAprMayJunJulAugSepOctNovDec

"Recommended" and "open" are recorded separately. Check the season for seasonal springs.

Oct · Nov — Autumn colour in Naruko Gorge, with the special bus

Sep — The onsen shrine's offering-of-water rite, when spring owners present their water

Apr · May — Rapeseed and cherry blossom on the Kawatabi riverbank; fresh green in the gorge

Dec · Jan · Feb · Mar — Snow; the Onikobe day-spa closes mid-November to late April

Food, culture & experiences

Available / bookable

Naruko kokeshi dolls

Naruko-style dolls whose heads squeak when turned; one of the three kokeshi birthplaces. Craftsmen's shops and a giant kokeshi line the town[2][1]

In town
Available / bookable

Naruko Gorge

A celebrated gorge for autumn colour, also easily reached from Nakayamadaira Onsen[1][4]

Special buses from Naruko Onsen in autumn
Available / bookable

Bath-hopping the five districts

Naruko, Higashi-Naruko, Kawatabi, Nakayamadaira and Onikobe. Nakayamadaira's Shintoro-no-yu is a silky pH 9.3 water; Kawatabi's communal bath is a yellow-green sulfur spring. A bath-hopping ticket is sold[3][1]

By the Rikuu East Line to each district's station, or the city bus
Available / bookable

Onsen egg spot

A place in town where you boil eggs in the hot spring[5]

In town

Editors' guide

Borrow geta at the station, soak first in Takinoyu (300 yen, acidic and sulfurous) and then Waseda Sajiki-yu (660 yen, neutral) to feel the contrast. Browse the kokeshi shops and eat an onsen egg. With more time, ride one stop to Nakayamadaira for the silky Shintoro-no-yu, or head for Naruko Gorge in autumn.

The "editors' guide" above is written by the editors from sources; it is not a visitor's opinion.

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.

Unconfirmed & notes

  • The selection note's "nine types" and "Namezu-no-yu" could not be verified; the association counts seven types and the communal bath is Takinoyu. The article follows the association
  • Source temperatures, free-flow notices and tattoo policy are unconfirmed
  • History, kokeshi, the geta loans and the Waseda story are from Wikipedia (CC BY-SA)
  • Single-guest policy at inns is unconfirmed

Sources

  1. 温泉 | 鳴子温泉郷観光協会鳴子温泉郷観光協会 · 2026-10-09
  2. 鳴子温泉 - Wikipedia(日本語版)Wikipedia · 2026-10-09
  3. 共同浴場・日帰り入浴 | 鳴子温泉郷観光協会鳴子温泉郷観光協会 · 2026-10-09
  4. 交通・アクセス | 鳴子温泉郷観光協会鳴子温泉郷観光協会 · 2026-10-09
  5. Wikimedia Commons: Category:Naruko Onsen(温泉たまご工房の写真記述)Wikimedia Commons · 2026-10-09

Register sources

Data status

Name & locationPublishedCoordinatesPublishedSpring typePublishedPhotosPublishedFacilitiesPublishedVisiting info (dated)PublishedEditorial articlePublished

Updated 2026-10-09

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