Onsen OniOnsen Oni

Chomei-ji Onsen - Amahanoyu Hot Spring

長命寺温泉 天葉の湯ちょうめいじおんせん あまはのゆ

Bathing Complex
Kansai·Shiga
+81 748-31-1126amahanoyu.com

Day Use

Yes
10:00–21:00
¥1,200

Adults (13+) ¥1,200 Mon-Thu, ¥1,500 Fri/Sat/Sun/holidays. Late-night surcharge from 6/22: ¥1,500 from 21:00 (Mon-Thu), ¥1,800 from 22:00 (Fri-Sun). Towel rental included in price.

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Cold BathYes

Cold water plunge bath, typically used after sauna

OnsenYes

Uses natural hot spring water

Capabilities

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

Tattoos allowed only during late-night hours: Mon-Thu 21:00-23:00, Fri/Sat/Sun/holidays 22:00-24:00

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

長命寺温泉 天葉の湯

Chomei-ji Onsen Amahanoyu

Operated by · 株式会社 心璞

Sampled at wellhead
ラ
Radon
Classification

Sodium-Calcium Chloride-Bicarbonate spring

A simple weakly-radioactive spring carrying enough radon to fall in the "hormesis" tradition, with radon measured at 330 Bq/kg. Weakly alkaline at pH 8.25, it is soft on the skin, colorless, transparent and odorless. Mineralization is light at 429 mg/kg, making for a gentle, low-stimulus bath.

pH
8.25
Weakly alkaline
Source temperature
26.7°C
Low temp.
Tonicity
0.43g/kg
Hypotonic
Flow rate
350L/min
Typical
Radon
330Bq/kg
High
Color
colorless and transparent
Odor
odorless
Highlights
  • High radon

Analyzed Nov 17, 2023·株式会社 日吉·Cert no. CV1811

Views

Lake

Highlights

Electric Bath

About

Chomeiji Onsen Amahanoyu (長命寺温泉, Chomeiji Onsen / Amahano-yu) sits right on the bank of Lake Biwa in Omihachiman. The outdoor area has small pot baths (tsubo-buro, 壺湯) and a hinoki cypress bath, both looking out over the lake. Inside there are several pools including a carbonated bath, an electric bath, a lying-down bath, and a radium spring kept flowing fresh. The wood-fired sauna (maki-sauna, 薪サウナ) and a high-temperature room are paired with a deep cold plunge fed by natural groundwater. After bathing, the second-floor restaurant and terrace have the same lake view.

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YK
Yulia K
8 months ago

A super sento with onsen water on the shores of Lake Biwa. Large complex, the only one in Omihachiman, tons of cars in the parking lot. In the women's section there were about 10-12 people; they say there were more in the men's. Outside there's no view, but there are deck chairs, a hinoki bath, and a stone bath with warm water. Inside: a small 38-degree bath, a large 40-degree one, a separate electric bath, a cold bath, and a jacuzzi-style one. An aroma sauna and a large wood-fired steam room (ours was 93 degrees). Photos aren't even on the official website. They give out 2 towels. Bottled milk available. Price on weekends: 1500 for adults, 500 for kids. There's a restaurant. Perfect after a packed day.