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Fukuro no Yu

ふくろうの湯ふくろうのゆ

Bathing Complex
Kansai·Wakayama

Day Use

Yes
Mon10:00–23:00
Tue10:00–23:00
Wed10:00–23:00
Thu10:00–23:00
Fri10:00–00:00
Sat10:00–00:00
Sun10:00–23:00

10:00-23:00 (Sun-Thu) and 10:00-24:00 (Fri-Sat)

¥1,200

¥1,760 onsen + ganbanyoku

Bathing & Water

Natural onsen water

Uses natural hot spring water

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Cold BathYes

Cold water plunge bath, typically used after sauna

Policies & Services

DiningYes

Restaurant or dining open to visitors (not just hotel meal plans)

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels available to rent or borrow

Rest AreaYes

Relaxation space for after bathing

ふくろうの湯

Fukuro no Yu

Operated by · 和島興産株式会社

Iron-bearing
+ Chloride · Bicarbonate
Color
milky white with a clear supernatant
Taste
faintly salty and bitter
Odor
odorless

Sodium Chloride-Bicarbonate spring

pH 6.7NeutralStrong salt
Composition fingerprint36.9 g/kg dissolved · Hypertonic
Na⁺89
Cl⁻78
HCO₃⁻21
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻
table-salt anion — coats the skin and holds heat in.
Known good for
  • Warmingcold sensitivity
  • Smooth skindry, rough skin
  • Cutsminor wounds

A sodium-led chloride spring with bicarbonate softness layered in and an iron-bearing character — classified as a strong-salt spring. With 36.9 g/kg of dissolved solids it exceeds ocean salinity and leaves a thick mineral film on the skin. At the source the water shows a milky supernatant with a faintly salty, bitter edge; the iron content oxidizes and colors the water on contact with air. Neutral pH keeps it from stinging despite the heavy mineralization.

Sampled at wellhead·Analyzed Jun 20, 2017·日本水処理工業株式会社

Explore the water

Highlights

Ganbanyoku

Programs

About

A day-use bath complex in the basement of the Forte Wajima building in the middle of downtown Wakayama, running on its own water from 1,500 meters down. The source tub is the interesting part: iron-bearing, strongly saline water that comes up the colour of strong tea and tastes salty on the lips, kept cool enough to sit in for a long time, with mineral crust building up along the rim. Around it are heated onsen baths, pot baths (tsubo-yu, 壺湯), jets, a cold plunge, a dry sauna and a herbal one, plus a stone-bed room (ganbanyoku, 岩盤浴). There is a restaurant and a massage counter as well, so people tend to settle in for a while.

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1 review

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Sergey M
1 year ago· edited

326. Fukuro no Yu, Wakayama ★ A super sento with onsen water, 10 to 20 minutes from Wakayama Station, ¥1200. Opening hours are listed as 10:00 to 23:00 (Sun-Thu) and 10:00 to 24:00 (Fri-Sat). They stamp the Kansai 41 Super Sento 24/25 stamp rally. There is karaoke, a diner, chill-out areas, a hyperbaric chamber, massage, and manga. There is a stone bath. It is on a basement floor, so there is no rotenburo. The bath photos are from the internet, but overall they match what is there, there are hardly any decent photos online. Breathing inside is fine. 1. Two-level bath. Upper level: the water is cloudy white-brown, with a rotten smell, temperature 37. Lower level: the water is also white-brown, but clearer, temperature 41. 2. Two barrels, the water is similar to the water in the main bath, but much less concentrated and rather clear. Temperature 40. 3. Three jet reclining baths, temperature 40. 4. Silk bath, temperature 40. 5. Sauna. 6. Cold bath. Even though there is no rotenburo, the place itself is good and close to the station. Worth considering for a visit in Wakayama. 03.01.2025

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Last updated August 2, 2026